I am also having the same issue with Bad Image Error while trying to load FS64 or FS32. I have McAfee LiveSafe. Deleted and reloaded FS many times but errors persisted. I WhiteListed FS in McAfee and was able to successfully log about 4 or 5 times but then problem returned. Will probably totally uninstall McAfee.
Its odd since I had and ran a free 1 year LiveSafe subscription when I got a new computer and didn't have any Firestorm problems. When the subscription was over and BEFORE I renewed it the problem began. After renewing the subscription the problem is still there.