I don't know if you are able to access the forums, and I don't know what browser you all are using (Internet Explorer I assume, but I recommend using FireFox instead, its SO much safer and secure) but here is some help from their forum...

http://forums.photobucket.com/showpo...06&postcount=3
(I would post the whole post but its VERY long and lots of URLs would get cut off)

And here is a post created by other PB members experiencing the SAME problem as some of you:
http://forums.photobucket.com/showthread.php?t=7485

Then again if you are unable to access the site chances are likely you will be unable to access the forums, too