Getting Started with the original VEX PIC
We've put together some great resources for getting started with the VEX PIC. Check them out here: http://www.robotc.net/support/vex/
You'll find tutorial videos that teach you how to set up the system, download firmware and download programs, along with printable guides for getting ready for a competition.
The Teaching ROBOTC for VEX product will teach you how to control your robots movements, set up remote control programs, and use the VEX sensors to write smart autonomous programs: http://www.robotc.net/vex_full/