helm: thats not it. I belive on yours it is NAPT entries. put the inside address as yourip
ort for soulseek and ouside address as 0.0.0.0(or wahtever the internet ip is):soulseek port
not the best instructions but give it a try.
ninja: not familiar with that model but most netgear routers use defualt login as admin and password as password. try that. of course if it has been changed it will need to be reset or you need to find the password.