1. How do I override the version byte?
Use a BNLS server that has the correct verbyte.
2. Does it create accounts?
Yes, it will create the account you're logging in to if it doesn't exist.
3. How do I make it connect to not Battle.net?
Like PvPGN? That's non-trivial, because the bot needs to know what namespace it's on (@USEast, et al), which I consider to be a matter of security. You'd have to modify at least two different source files to hardcode a new server, or to enhance the bot to allow custom servers. If you want more info, PM or visit #Clan BNU@USEast.