Need to get about 15 users trained to use Outlook 2003 in a exchange enviroment. I'm not a good teacher and users have "very basic" knowledge. What are my best options?

Hello,

I recently upgraded to Windows 2003 server and installed exchange.  I installed outlook on all my users desktops (about 15) and got it configured.  Now comes the hard part... getting the people to use it.  About half of my users have some basic knowledge of outlook but none have used it in an exchange enviroment.  Here's my other problem... I'm not a very good teacher.  I know outlook but I have a tough time showing others.  Has anyone ran into this problem?  Could you give me some ideas here?  I live in a small town with an hour drive to a city with any kind of a college or training center.  Any suggestions are appreciated.