If you simply want to add a column and sort (not filter), then it's quite easy to do. I believe there are 2 or three spots you'll need to copy/paste the current column code and simply add the place for the IT Policy name. Filtering will be a little bit more complicated, as nothing is defined as a function for this purpose.
Umm, I had a suggestion the other day, but I completely forgot it. blubyu, since you have a Windows box online, try to get the user management functions working w/o involving SSH, too. I've been toying with some of the old code, but I got busy doing something else earlier...