I got my copy of FinalBuilder a few days ago, and installed it right away. Unfortunately, it crashed the instant I ran it. Turns out, its the licensing scheme they are using. Its broken by the "Data Execution Prevention" feature in Vista which is supposed to protect one from buffer overflows. So you'll need to add the FinalBuilder executables to the exclusion list, like in this screenshot:

(click to enlarge)

Add the files ActionStudio.exe and FinalBuilder5.exe from the FinalBuilder program directory to the list.

I hope they fix this soon.