If you're robot is only going forward and backward, it may be a mismatch between the physical system and how the motors are opened in Begin.vi (are there four motors?). If the problem persists, could you post screen shots of opening the motors in Begin.vi and what you have for setting them (in Teleop)?
Team 358 has posted a lot of example code on their website:
http://www.team358.org/files/program...hp#ArcadeDrive
Please feel free to personal message or email me if you have any issues and want a quick reply.