GTS Kickdown

My GF got a Celica from a cheesy used car dealer. Was running rough at idle and they suggested replacing motor mounts (I know its prolly the IAC/MAF - I found you guys researching that problem) anyway - they replaced the motor mounts and now tranny kickdown isn't working - any ideas? Don't want to take it back to them - they seem like idiots with much better things to do (like beer 30 etc...)