There'll be a switch on your transmitter somewhere to reverse the servos - give it a click

If you can't find it, post your transmitter model and I'll try and find out where it is for you.

For reference though peeps, if you're having trouble in the US with your transmitters, try giving CEN a call (their number is on http://www.cenracing.com). When I was having problems, a very knowledgeable guy talked me through several possible solutions but hit a stumbling block when we got to the transmitter - it's different that the one CEN supply over there so he didn't know it...

Worth a shot