I'm sorry to hear that.
Do they know it's today? (In a perfect world, all people would have all of their friends' birthdays marked down on a calendar, but in reality, it's a better idea not to rely on that, and instead remind friends that your birthday is coming up.)
Anyway, go out and try to have a happy birthday nonetheless. <img src=smilies/thumb.gif>
If I was a girl I'd give you a comforting hug, but for some reason it's not considered ok for a heterosexual guy to do that to another guy.
Oh, what the hell. *hug*