launcher pro is available in the market. I believe its free unless you go for the plus version which has special widget options
I also have no experience with using this on the droid 2 so I'm not going to be able to give you much support on it unfortunately, maybe someone else here will be able to. check out the droid 2 section of the forums. Best of luck.
Launcher pro is a home replacement app in the market, there is both a free and paid version. This will also allow you to reduce the number of homescreens, so if you don't need 7, you can reduce them to 6, 5, 4, 3, 2, or 1... I personally only need 4 screens, so that is what I have mine set for. If you only need 3 screens let's say, the picture would only be split between 3, not 7 and might make scrolling a little bit smoother.