Why on earth would anybody pick vbulletin over Invision is beyond me. There are absolutely no advantages in vbulletin compared to Invision. Vbulletin's interface is far worse, the search is poor and it looks very messy. Please, lets move onto a real forum system like Invision. Even phpBB is better than vbulletin and thats free. Really cant understand why you wasted money on a vbulletin license, I hope you were sponsored so it was free.
Im not sure if im going to be able to reply in this thread because it pains me to use any website using vbulletin. Please let me know when you come to you senses and move to Invision or even phpBB for that matter.