Improve login bridge and tournament script

We have a complete, working, login bridge between vBulletin and Elite Gaming Ladders script. We would like someone to improve it by sharing all profile fields. i.e., when a user enters their gamertag in the profile of EGL it is also in their profile for VB (or they can enter it in VB profile and it is in their EGL profile). This should be an easy task for someone familiar with PHP and vBulletin. Our tournament site currently only has single elimination tournaments. We would like to add the feature of double elimination with the ability to set either single or double elimination when creating a tournament. We also want to add the ability for members to challenge each other for cash. i.e., member 1 challenges member 2 to a Counter-Strike match for $10. Member 2 accepts the challenge. Both teams must then put $10 into an escrow account. Once the match has been played we receive a percentage and the rest is released to the winner. Also, all challenges on our site (and match accepted) should be posted to our Twitter account.