There is a way to do that. However, before telling you how, my predicting mind (apologize in advance if I'm wrong since I can't check for sure, but I'm 99.9% sure I'm correct) will tell you this:
Please go to
this page and enter your forums username (Jeff Bronstein) there. You will need to use your customer number and customer password you were supplied when you purchased your vbulletin license.