right i was just on the internet on google and i clicked on a webpage but then exitited it and then AVG thing popped up threat detected and bla bla..does this mean i have a virus NOW !!??
For AntiVirus I'd try www.kaspersky.com (they'll let you run it 30days free, so you can at least check your system with a top notch AV product) Go download the kaspersky installer, then unintall AVG, then install Kaspersky. Do it in that order so you're not going to webpaged nekked.