No brake or Reverse :( please help!

[git-r]

Hi All,

I've just got a second hand xray t3 and put new motor/esp/reciever in. It came with a servo for steering.

After not too long I had everything fitted and the car was going forwards and steering very nicely but no brake or reverse

The esc is a speed passion ReventonR and motor speed passion V3.0, comp bl motor 13.5t.

I've done the following to no avail:

-Callibrated the throttle range settings - tried this with ATL at %100 and with throttle channel in reverse and normal..
-Updated the firmware and installed all sowftware so my laptop now displays all settings for esp when connected.
-installed stock settings onto the esc (didn't really mean to do this - was just testing to see if it worked!)

Things that seem wrong:
-can't get reverse or brake
-can't change 'running mode' on laptop or on the 'smart program card' when plugged into esp. ie I can't get it off 'forward with brake 'no reverse'.

Any sort of help would be much appreciated...