binevi, I don't really understand what you're trying to do. If you already had 3.7.1, the only "upgrade" is the security patch discussed previously in this thread. If you've uploaded that and it's generated a problem, I would suggest asking for help over at vb.com. Sorry I can't be more helpful.
When I unrar the patch file, I do see pretty much ton of files in there... Just like a folder for upgrade or brand new installation.... where is the patch file(s)?