Thanks
Its pretty easy. Just install it, run it, scan the area you are wondering about and it braks it down. Then, double tapping takes you to that area, if memory serves.
It looks complicated, but its not. Very basic. The larger chunk something takes, the more space, etc. Try it out. I find it very useful, because it can even check out dll files.
With this program, I am able to keep my Omnia's main memory clear, with 25mb to spare (and 27 apps installed!). If it drops down to less, I fire it up and see what is taking it.