Is there anyway to make user accounts on this so that only certain users can edit the information? And is there a way to password protect those accounts?

I suspect he means DVD Profiler, not the web site.

Create a database outside your 'My Documents' folder and grant the other users read-only access to the files. Profiler will prevent changes to individual profiles and display an error message "tblTagAssign: Cannot modify a read-only dataset." or something similar. It may become unresponsive with certain online operations and needs to be shut down, but this was the only problem I encountered, and no damage was done. (Tested with XP pro,  but it should also work with some versions of Vista.)