Yes, Yes, I know it's been down. There was some discussion of this same issue here:
http://www.exetools.com/forum/showthread.php?t=4575
Woodmann has been trying to complete a major upgrade of his server files and has been having some major issues trying to get the correct versions of his mail server, apache, php, MySQL and others all to upgrade correctly and still talk to eachother. He's tried a couple of different "upgrade" versions which have not worked together and/or with other parts of the system. It is still being worked on and should be back up and working soon. Real life has also been interferring with his efforts.
Not to worry. Nothing is wrong with the vBulletin program and several of us have back-ups and I have both a back-up and a copy of the database files themselves from July 9th.
Heck, even this forum was down most of July 10 and for most of a full day BOTH forums were down at the same time.
Patience is required. It will take as long as it takes.
Regards,