For first login you may need to reset your password. This is due to the way that Invision handled certain passwords. If you struggle to reset your password please contact me via the details in the New Forum Live topic in Announcements.
Updated the forum to Xenforo 2.1 and all associated things are updated as well. I've got a couple more tweaks to make so some things may change but i'll make a post once i've done these.