port forwarding time capsule

I`ve been trying to firgure port forwarding out and still don`t get it. If I`m understanding I need to enter my TC in order to port forward. Ive entered thru airport utility and clicked manual set up . That`s as far as I`ve gone, not knowing where to go next and what to set up. Any help would be great,thanks.

I`m set up thru TW, using their Motorola SB5150 > ethernet > TC > wireless MBP, I`m just trying to set up to file share . Azureus tells me I have a NAT problem and my port is not open. Also when I run transmission I have a slow up speed but dl seems to be ok . i don`t know how to or understand how to port forward using the TC.thanks

Try this:

Mac Must Knows: How To Port Forward: Time Capsule

Ken

thanks Ken ,much help