FAQ.FirewallsRouters.TeledatDSLKomfort
Teledat DSL Router Komfort
Step 1 Get Shareaza's port number. Shareaza -> Settings -> Connection. There's a label named Port. Write down the number next to it in the box.
Step 2 Follow the instructions here (in German): Portweiterleitung DSL Router Komfort Substitute the number you wrote down above where they show 4662.
Now your router should be configured.