Rather that come here (or anywhere) looking for a way to bypass the controls that you parents feel are warranted, why not sit down with them and try an adult conversation about the issue? Leave the entitlement and emotion out of the discussion and just approach it from a logical point of view. Perhaps if you can show them that you can have a reasonable and unemotional discussion on the subject, they will be more willing to consider your point of view and loosen the controls a bit.
Or you can throw a hissy fit, stomp your tiny little feet and prove to them that their locking down your system was warranted.