Wow wow wow... lots of questions...
Anyways, to answer your first, it never occured to me that someone might want to use reputation... it seems kind of useless to me because I don't know who would want to bet all of their reputation points away... maybe if you can better explain why you would want to make it go off of reputation I could code something that would make it go off of reputation.
Not sure what you mean by you can't go back in your browser back to the lottery. I can and it seems fine.
Maybe we'll include something later to end lotteries and stuff, but right now it is just one lottery. Maybe there will be multiple later.
Tomorrow I'll release vbCasino BETA 3, which fixes all known bugs and adds a link or two and a few new features and some placeholds for features in the future. I could release it now but I think vbulletin.org would get mad, because they don't want to see vbcasino up every single day... I just have had to update it too much lately...
The good part with BETA 3 is that no one will have to do more file edits on this one as far as I know.
If you are having problems in BETA 2 with not seeing any links on the top, try editing a phrase or a template. I changed a few templates for BETA 3 and all of the sudden the DEMO board started working, so I'm thinking I either changed something or it was just the fact that I edited something. Sometimes that's the case. If not, tomorrow's BETA should do the trick.