Yes, once the hack (which I think will be called vBadvanced (lite)) is done then I will post here about it, and you'll also see it in this forum. I've made a little progress on it, but not quite as much as I would have liked to by now... Been a really busy week.
The Newsletter thing you see on my site is just a simple cgi mailing list script that I've been using forever. It's not tied in with vBulletin in any way other than I use $bbuserinfo['email'] to automatically put the user's email address in the text box.

You're right about the poll thing... It should be checking for a cookie on the users computer to see if they've voted, but apparently it's not. I'll look into that and try to fix it in the next couple of minutes... I guess v3.2.3 is on it's way.