Ok so I think this post beongs here, but if not let me know and I will delete and re-post!

We have two groups of users that will be using the same database. These two groups will not see any of the same screens due to certain reports that will be run, scripts that could be executed, admin fields and whatnot.

Right now I have seperated them into two files and am using a script to open the correct file depending on their privilege set. IS this neccesary? I could do it more simple CORRECT??

You should keep like-data in the same file, so you don't have to mess with syncronization. The interfaces for different groups could be in the same file or separated into two files, linking to the same data file. I should think it would be easiest to design and maintain the interfaces if they were in one file (one set of scripts and relationships to deal with,) and it may be easist to have them in the same file as the data.