if you have the learning remote all you have to do to program the button is enable learning mode point the other remote at it and press the button you want copied to the learning remote.
http://www.urcsupport.com/images/uploaded_images/AtlasOCAPM1056LManual.pdf
page 15
press setup untill the mode key blinks twice
ENTER CODE 975
press mode key you want the button to be used in
cable tv vcr etc etc
in your case CABLE
Then press the key on your
Remote Control that you want to learn the new code
place both remotes looking at each other so your remote can see the others beam about 2" apart
On the original remote, press and hold the key
to be learned. The Atlas OCAP 5-Device
Remote Control with Learning’s LED will
blink rapidly, then turn off. Continue holding
the key on the original remote until the Atlas
OCAP 5-Device Remote Control with
Learning’s LED blinks twice.
If the LED displays one long blink, a learning
error has occurred. Try repeating this step
again until a successful capture occurs. If the
function is still not captured, press and hold
SETUP to exit programming