so i am on the sprint network and i know for sure that parents are able to read text message content and whereabouts of the kid online, (i've seen it first hand), and i was wondering if there was a program or feature i can download onto my blackberry, or something already on my blackberry that would actually block my location or have text messages come up blank online? please help.

Options > Advanced Options > GPS is where you can set GPS Services to "Location Off". Unless your phone is set to BCC all outgoing messages to some address then no one is reading your text messages. Unless they're taking your phone while you sleep and going through your messages folders. To prevent this, just set a password and let it auto-lock after 30 minutes or so. Just remember your password!