I need a horizontal drop down menu to work on our school's website. The CSS and HTML are attached. There are two problems

1) On IE 7, I can not get the menu bar to center on the screen. It always stays to the left.

2) On IE 8, it centers, but then each main heading floats to the right a few pixels. I've attached a picture of this messed up thing.

sure hope you can help me with this.  If so, I will remain a subscriber to your group. If not, I'm outta here.

#menu {
width: 100%;
background: #c16100;
float: left;
margin:0 auto;
}

#menu ul {
list-style: none;
margin: 0;
padding: 1;
width: 9em;
float: left;
}

#menu a, #menu h2 {
font: bold 11px/16px arial, helvetica, sans-serif;
display: block;
border-width: 1px;
border-style: solid;
border-color: #ccc #888 #555 #bbb;
margin: 0;
padding: 2px 3px;
}

#menu h2 {
color: #000;
background: #ccc;
text-transform: uppercase;
text-align: center;
}

#menu a {
color: #000;
background: #efefef;
text-decoration: none;
}

#menu a:hover {
color: #a00;
background: #fff;
}

#menu li {position: relative;}

#menu ul ul {
position: absolute;
z-index: 500;
}

#menu ul ul ul {
position: absolute;
top: 0;
left: 100%;
}

div#menu ul ul,
div#menu ul li:hover ul ul,
div#menu ul ul li:hover ul ul
{display: none;}

div#menu ul li:hover ul,
div#menu ul ul li:hover ul,
div#menu ul ul ul li:hover ul
{display: block;}
</style>

<!--[if IE]>
<style type="text/css" media="screen">
 #menu ul li {float: left; width: 100%;}
</style>
<![endif]-->
<!--[if lt IE 7]>
<style type="text/css" media="screen">
body {
behavior: url(csshover.htc);
font-size: 100%;
}

#menu ul li a {height: 1%;} 

#menu a, #menu h2 {
font: bold 0.7em/1.4em arial, helvetica, sans-serif;
}
</style>
<![endif]-->

HERE'S THE HTML

<div id="menu">
<ul>
    <li> 
      <h2>Parents</h2>
      <ul>
        <li><a href="file:///C|/Sites/link1.html">Sugar Hill Parent/Student Handbook</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/gcps-mainweb01.nsf/6E13B53355EF364A8525760100710D80/$file/2009-10_K-3_Student_Parent_Handbook.pdf">GCPS 
          Parent/Student Handbook K-3</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/gcps-mainweb01.nsf/A2E3C801F82CD2F085257601007119BC/$file/2009-10_4-12_Student_Parent_Handbook.pdf">GCPS 
          Parent/Student Handbook 4-12</a></li>
        <li><a href="SCHOOL_COUNCIL.html">School Council</a></li>
        <li><a href="https://go2.gwinnett.k12.ga.us/parent/wps/portal">Parent 
          Portal</a></li>
        <li><a href="file:///C|/Sites/link5.html">Parent Visitation Policy</a></li>
        <li><a href="file:///C|/Sites/link6.html">Counselors Corner</a></li>
        <li><a href="MEDIA.html">Media Center</a></li>
        <li><a href="daycare.html">Daycare Providers</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/gcps-instruction01.nsf/pages/PromotionandGraduationRequirements">Promotion 
          Criteria</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/gcps-mainweb01.nsf/78940A76A22C4D458525764D004E9DAA/$file/2009-10_Student-testing_calendar_REVISED_1-11-10.pdf">Testing 
          Calendar</a></li>
        <li><a href="REG_INFO.html">Registration Information</a></li>
        <li><a href="https://www.k12studentinsurance.com/">Student Insurance</a></li>
        <li><a href="http://www.northgwinnettschoolsfoundation.org/index.htm">North 
          Gwinnett Foundation</a></li>
        <li><a href="SUPPLY_LISTS.html">School Supply Lists</a></li>
      </ul>
    </li>
</ul>

<ul>
    <li> 
      <h2>STUDENTS</h2>
      <ul>
        <li><a href="a">Sugar Hill Parent/Student Handbook</a></li>
        <li><a href="http://www.patrickelementary.org/2009-10%20K-3%20Student%20Parent%20Handbook_FINAL.pdf">GCPS 
          Parent/Student Handbook K-3</a></li>
        <li><a href="http://www.patrickelementary.org/2009-10%204-12%20Studen%20Parent%20Handbook_FINAL.pdf">GCPS 
          Parent/Student Handbook 4-12</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/aks.nsf?OpenDatabase&0-&s-mainweb01.nsf">GCPS 
          AKS</a></li>
        <li><a href="file:///C|/Sites/link17.html">Longhorn Links</a></li>
        <li><a href="file:///C|/Sites/link18.html">Clubs & Activities</a></li>
        <li><a href="http://sme.gwinnett.k12.ga.us/">SuccessMaker</a></li>
        <li><a href="https://www.georgiaoas.org/servlet/a2l">CRCT Online</a></li>
        <li><a href="online_books.html">Online Textbooks</a></li>
        <li><a href="file:///C|/Sites/link21.html">School Store</a></li>
        <li><a href="file:///C|/Sites/link22.html">Ice Cream Sales</a></li>
      </ul>
    </li>
</ul>

<ul>
    <li> 
      <h2>FACULTY/STAFF</h2>
      <ul>
        <li><a href="admin.html">Administration</a></li>
        <li><a href="file:///C|/Sites/link25.html">Counselors</a></li>
        <li><a href="kindergarten.html">Kindergarten</a></li>
        <li><a href="1st_grade.html">First Grade</a></li>
        <li><a href="2nd_grade.html">Second Grade</a></li>
        <li><a href="3rd_grade.html">Third Grade</a></li>
        <li><a href="4th_grade.html">Fourth Grade</a></li>
        <li><a href="5th_grade.html">Fifth Grade</a></li>
        <li><a href="special_education.html">Special Education</a></li>
        <li><a href="special_areas.html">Special Areas</a></li>
        <li><a href="technology.html">Technology</a></li>
        <li><a href="media.html">Media</a></li>
        <li><a href="support_staff.html">Support Staff</a></li>
        <li><a href="office_staff.html">Office Staff</a></li>
      </ul>
    </li>
</ul>

<ul>
    <li> 
      <h2>TEACHER LINKS</h2>
      <ul>
        <li><a href="file:///C|/Sites/link37.html">Sugar Hill Leave Form</a></li>
        <li><a href="https://go.gwinnett.k12.ga.us/app/wps/portal">Go Gwinnett</a></li>
        <li><a href="https://go.gwinnett.k12.ga.us/app/wps/portal">GCPS Elements</a></li>
        <li><a href="http://streaming.discoveryeducation.com/">Discovery Education</a></li>
        <li><a href="http://www.gwinnettonlinecampus.com/">Gwinnett Online Campus</a></li>
        <li><a href="http://www.gwinnettk12online.net/ec/crs/default.learn?CourseID=3039050&CPURL=www.gwinnettk12online.net&Survey=1&47=4001211&ClientNodeID=404494&coursenav=0&bhcp=1">2000-2004 
          Exemplars</a></li>
        <li><a href="http://www.gwinnettk12online.net/ec/crs/default.learn?CourseID=3039050&CPURL=www.gwinnettk12online.net&Survey=1&47=4001211&ClientNodeID=404494&coursenav=0&bhcp=1">Kindergarten 
          Exemplars</a></li>
        <li><a href="http://gwinnettk12online.net/ec/Courses/31133/CRS-OTHR-3039050/diff_math/start_here.html">Differentiated 
          Best of Math Exemplars I</a></li>
        <li><a href="http://gwinnettk12online.net/ec/Courses/31133/CRS-OTHR-3039050/start_here.html">Differentiated 
          Best of Math Exemplars II</a></li>
        <li><a href="http://gwinnettk12online.net/ec/Courses/31133/CRS-OTHR-3039050/diff_math_3/start_here.html">Best 
          of Math Exemplars II</a></li>
        <li><a href="http://www.gwinnettk12online.net/ec/crs/default.learn?CourseID=3039050&CPURL=www.gwinnettk12online.net&Survey=1&47=4001211&ClientNodeID=404494&coursenav=0&bhcp=1">Gwinnett 
          Math Online Resource (MOCC)</a></li>
        <li><a href="http://www.gwinnettk12online.net/ec/crs/default.learn?CourseID=3039050&CPURL=www.gwinnettk12online.net&Survey=1&47=4001211&ClientNodeID=404494&coursenav=0&bhcp=1">Big 
          20</a></li>
        <li><a href="LA_ACCESS.html">Directions for Accessing LA Online Resource</a></li>
        <li><a href="http://www.gwinnett.k12.ga.us/LanguageartsES.nsf">Gwinnett 
          LA Online Resource</a></li>
      </ul>
    </li>
</ul>
<ul>
    <li> 
      <h2>SCHOOL CALENDAR</h2>
      <ul>
        <li><a href="file:///C|/Sites/link52.html">August</a></li>
        <li><a href="file:///C|/Sites/link53.html">September</a></li>
      </ul>
    </li>
</ul>
<ul>
    <li> 
      <h2>NEWSLETTER</h2>
      <ul>
        <li><a href="file:///C|/Sites/link54.html">August</a></li>
        <li><a href="file:///C|/Sites/link55.html">September</a></li>
      </ul>
    </li>
</ul>
<ul>
    <li> 
      <h2>CAFETERIA</h2>
      <ul>
        <li><a href="https://www14.mealpayplus.com/default.aspx">Meal Pay</a></li>
        <li><a href="file:///C|/Sites/link57.html">Lunch Menu</a></li>
        <li><a href="file:///C|/Sites/link58.html">Breakfast Menu</a></li>
        <li><a href="file:///C|/Sites/link59.html">Nutrition Facts</a></li>
        <li><a href="file:///C|/Sites/link60.html">Nutrition Nuggets</a></li>
      </ul>
    </li>
</ul>
<ul>
    <li> 
      <h2>PHOTO GALLERY</h2>
      <ul>
        <li></li>
      </ul>
    </li>
</ul>							
</div>

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menu.JPG