Internet connection sharering, how to ?

Hello my name is Francisco I used to have SBC Dsl and since I’ve moved I can Only get Verizon Dsl, costumer service here sucks I can’t get to talk to anyone to help me set up my home network, so the problem is this I want to know how do file share so I can see the PC connected to the network and from there how to share my Dsl Connection please help thank’s very much.