It sounds like you may have downloaded some spyware by clicking on the link within the email.This type of scam has been around for years now,it fools people into believing they have illegal content on their PC and then tries to get them to download either a virus,spyware or a program they have to pay for to remove the so called illegal content. Try posting your problem in the technology section and one of the knowledgeable people in there should be able to help you out.