RC will not communicate with OI

[Ryank]

I admit we are a rookie team, so this is a probably a stupid mistake. That said, we have just assembled our kit-bot (a base robot with two victors with which to test things out and get used to wiring the electrical system, etc.) and everything works great. Battery blinks green, program function works, radio modem is solid orange, RC hardware blinks green, and RC mode is off. When putting in the modem (yes, into the radio port) and hooking up the OI with the transmitter, the trasmitter says transmitting but the reciever or modem on the robot just says "ready" and periodically blinks to receiving. The OI also says no data/radio. We have downloaded and installed the ifi_frc_beta_3[3] code to the robot controller and from what we can see it wrote (programm was oragne then finished and is now green). Any help? We just want to get this thing to a point where it can be driven with a joystick.