Did you install DeskScapes after you installed Impulse? Your post reads that you may have restored your original folders to where they were after your reinstall. If that's what you did you will need to reinstall DeskScapes for the options to show in your right click menu.
If you're running Vista Ultimate you probably had the "Ultimate Extra", DreamScene, installed and the free version of DeskScapes.
It was for Vista Ultimate only and can be found here... DeskScapes 1.2 . Be sure to run the Windows Update and download DreamScene prior to installing it.
One thing, the newest version of DeskScapes is 3.25. It has it's own GUI, special effects and it's just plain awesome compaired to the original. There is a trial so if your on the fence about buying it, check it out and I'll bet you purchase it before the trial expires.