I apologize for bumping my post, but it is in fact my ISP. The crappy
thing about it is I've been a customer with this ISP for seven years
and only now (2005) did they decide to block my port 80. As you may
guess I'm quite mad.

I would like to thank you for your reply and the test that you ran. I
know now that it'll work right out of the box, as soon as my ISP gets
their crap together. Thank you.