RF communication

Hello
I want to build a RF controlled robot using 433 MHz modules (https://www.sparkfun.com/commerce/categories.php?cPath=16_79) and PIC18f4550 microcontroller on robot and transmitting data from USB port of computer, again using PIC 18f4550. Can some one please suggest how should I proceed.

Regards
Samar

For a start read my tutorials about RF modules, then just add the USB code from the application notes.