I'd say you're doing good for using litestop only a week. I'm big into analyzing my work habits and optimzing litetep to reduce my clicks and movement. So I'm doing something very similar. I click a button (shortcut) and I move to next directory. I have it setup for my 3 most commonly used directories (Programs, My Documents and temp). Each click of the button goes to next directory. I also have an "up" button to navigate to the parent dir.

The difference between our methods though is I'm using deskfolders and shortcuts. No scripts. Your way might be cleaner though if you can get it to work. I really had a tough time getting the logic right using shortcuts for the buttons to move from folder to folder. Lot's of toggles, hides, shows, ontops. Still working on my interface or I'd point you to it.