XPath question

Hello again EE, I have little questions for vb.net

First,
lets say I have this:

<div class="Main">
   <td class="Event">
      <a href="abc" title="hello"></a>
      <a href="ggg" title="hi"></a>
    </td>
</div>

with xpath.. how can i get href and title of all tag <a> that is preceded only by a TD with class names="Event" ?  in this example, i would only get the first <a> not the second one..



Question two:
lets say I wan to search for a string in a HTML source that is not in any tag.. its juste a text between tags like:   <td><a href="dddd"></a><br />200 items left</td>

is there a way to get it ?

thanks for the help.