[Ifeffit] installing IFeffit, etc on user accounts

I recently installed the IFeffit package on a multi-user computer that uses Windows XP Pro. Athena and all of the other programs open and work fine on the administrator account but do not work on the user accounts. If I change one of the users to administrator it also works, but as soon as I change them back to user it again does not work. The Athena version we are using is 0.8.56 if that helps. Network security reasons require that our general users are on "user" not "administrator" logins. Any suggestions on how to get the programs to work in "user" mode? Thanks, Elizabeth Biddinger