RE: Controller issues with Art-Tec EF-2000 2.4GHz
Normally 4-channel planes are set up as follows on the receiver:
Channel 1 = ailerons
Channel 2 = rudder
Channel 3 = speed control/power = throttle
Channel 4 = elevator = up & down
Anyway, I believe that is correct for MOST 4 Channel transmitter - receiver setups!
On a Mode 2 transmitter, which is one where the throttle is on the left stick up and down and rudder is also on the left stick left & right (like yours).
Your problem is, as you say, "...right stick was backwards with up/down = left/right" - this is NOT something where you can reverse the operation with the servo reverse on the transmitter, this is where you have to switch the appropriate leads on the receiver! Simply unplug the appropriate leads and switch them = plug them in where they belong!
If it doesn't work, try again until you get the correct operation!
Hope this helps,
Happy New Year,
sushi/Dave