Determined to stop being a leecher, I opened up the ports on my firewall of 6881-6889. In Azureus options under connection I have the incoming TCP listen port set to 6881 and bind to local IP address set to my IP address. After doing all this I am still leeching. Upon starting Azureus I get two errors, the first reading

Error: Failed to establish listen on port UDP:6881. Check that other applications aren't already using this port. Also check for another copy of Azureus running.

and

Error while processing advanced socket options: Cannot assign requested address: bind

I'm really not good with computers so I can't really understand any of this, and I'm sure I'm doing something stupid, but could someone help me out? I still am downloading and uploading but at slow speeds.

Any help would be appreciated,

Thomas