You need to setup internet connection sharing on the PC with the modem, but I don't know if Linux will be able to connect to that configuration.
You can also try a different router like this http://www.netgear.com/3g
that works with USB cell modems.
Thanks for replying..
I am using ICS on my Dial Up(3G Modem) and sharing the internet over the network using a crossover cable..
But what i want to do is make the internet access wireless.. so i will be able to access internet on my laptops and tabs
I suppose a way of doing it is turning my router into an AP