Cannot access the internet

First you need to know I am a computer illiterate blonde. I don't even know if I am in the right forum. The problem: My son and I share a computer. He is the administrator and I am a secondary user. A while ago we inherited a virus which played silly beggars with Google searches. Eventually we lost access to the internet although everything was telling us we were connected.
Someone on the net suggested running a program?? which had the words Tweak and Winsock in it. (See what I mean about being illiterate) This worked for my son and he is now able to access the internet. However it did not work for my side. I have tried various repair options and cmd iconfig and it tells me I have a connection. Could anyone please help as I have to go to the local library to access my stuff and they are sick of seeing me. Many thanks and I do appreciate that you probably wont understand a word I have said because I don't understand it either.