I'm glad you were able to try helping her out with these logins. I'll brief you about our progress in trying to sort out the issue of *missing* student logins. 

 I'm not sure she received the better version of the password list (my fault -- I just emailed it instead of printing it out), so there may be some unclarity about what's the actual password formulation or a particular student usernames.  

Let's generate a new listing, get a printout into her hands (or in some protected form in the lab if you can come up with that), and verify for some sample students.  Also we can put ADUC program on a selected XP station to reduce the need for Remote Desktop inconveniences.