tracked robot

We are building a tracked robot based on the dagu rover 5, With as brains the BASIC STAMP 2.

We need some help with the command lines to get the thing moving.

We have tried several commands like pulsout pwm, But due to a faulty driver board got three channels running fourth channel the board started smoking got repleasement board in now, But are very hessitant to start testing again with more smoke.

Thanks in advance

Kind regards

Joep and Jean