Help with Port Forwarding in Siemens C2110

Hello Guys,
I am new to this forum and don't know much about posting threads so please forgive me if my post sounds somewhat irritating.
I got a Siemens C2110 modem with bsnl 500C plan.I download a lot,mainly from torrent sites and usually get speeds of about 70-90kBps while downloading torrents.A few weeks ago I learnt that port forwarding helps in improving download speeds.For the past three days I am trying to port forward with this program called Simple Port Forwarding.But I am unable to create a static ip.If I try to create it manually,I can't connect to the net and if I try to create it with the help of that program,it gives an error message.
So please tell me how to create a static ip.Pleeeese.

Please try

Port Forwarding Utorrent on the Nokia Siemens C2110