Switch to Azureus, forward ports 78000, then configure azureues to these ports. Make sure windows firewall is configured or turned off (I dont use any firewalls, never had never will) make sure your router firewall is configured or disabled. Then use the build in Azureues NAT test to see if you are open. If you are pick a popular file and wait at least an hour for your speed to get up. Set your DL speed to unlimited and set your upload speed to 90% of your real world upload. You need to have DL'd a decent portion of the file you want and start sharing it before your speed goes up. Do this and if you still have a problem run Azureus and take a screen shot of it running send the pic to me. You can also try this.
http://www.testmy.net/forum/t-890
its a lil outta date... damn I gotta update that.
Welcome to the forum. Hope you like it.