Hey Rebecca,
Are you using a custom template? If so, did you remember to rename the admin folder before uploading the files?
If that's not it, I would just download the mod again, then upload the admin files to your server again. Maybe one of your files was bad.

BTW, look above in this thread for the new thread for the current version of this mod. There will likely be a lot more activity their, and help will come quicker

HTH,
Audra : )