Hi Katherine,
It can be tricky getting all the tools installed and setup especially if there are multiple versions of Sql Express installed.
If there was a way I could help via desktop sharing I'd be glad to try and help you get things setup. I could probably get a WebEx meeting setup with you through my friend who runs the Yamisee service, but I'm not sure how accessible the meeting/desktop sharing software is in terms of use with a screen reader. Have you ever used WebEx or any other desktop sharing/meeting software before?
Best,
Joe