Can I Get On A Blocked Site From My Home WITHOUT Useing Proxy?

Heres The Deal, I Got My Computer Fixed, But He Blocked A Tun Of Sites That He Says Give You Virusus.. There Blocked Via Security Settings Or Parental Settings. He Put A P Word That I Cannot Guess And Am Not Going To Try To Furthur Guess, I Just Want To Play Stick Arena Ballistick And Proxys Dont Work For That Reson. Is There Anything Else I Can Do? Today Was Obamas Inaugural! :)