All I do is follow the portforward.com instructions - I don't have some secret thing I do to make it work. You must just be slipping up somewhere. The key things are these:
- Make sure you have YOUR network IP (it should be 192.168.x.x or 10.1.x.x)
- Make sure you've forwarded ports 28000-28030 on TCP AND UDP (If there is an option for "Both", choose that)
- Make sure you don't have any wacky antivirus still hiding anywhere, it'll definitely mess you about.
If you still can't get it working, I can remote access your router but only if you're comfortable with that option. I'm just not prepared to do the whole screenshot relay thing where you send me a load of screenshots of everything - it takes too long.