Westell C90-610030-06 Giving me problems.

[dagon11985]

I cannot Accept or send files through any type of instant messenger , and i cannot host any game servers. I am pretty sure its port related , but I don't know how to how to change my router's settings and open the ports. I got the modem through bellsouth and there isn't any manuals on the modem including in their little installation kit.