If you compile the AppleScript to an executable it might work, it all depends on where the problem is. On windows, the issue isn't really with Flash but with the applications you're launching. If they don't understand how to handle UNC paths then they won't work. I'm guessing the root problem on the Mac is the same so it would depend on how compiled AppleScripts work.

The guys at Atomik Software just wanted someone to maintain Fire-Up so that's what I'm going to do. I won't be charging for the new tool, it will be released for FREE when it's ready.