There are two versions of the Hitec Flash 5 transmitter. The original, and Flash 5 System X. I think yours is the original because I do not see a big "X" where it says Flash 5. I do not know all of the differences. The original has less features but I'm pretty sure it (or the Futaba) will work fine for a Cub style model.

If they have one in stock on the same frequncy as either transmitter, this is a super deal on a very good receiver
http://www3.towerhobbies.com/cgi-bin...I=LXMFU5**&P=0
$31.26 including the receiver crystal. It is compatible with the Hitec or Futaba transmitter.

Here is another option if the Hobbico is not available on your frequency.
Receiver $29.99 http://www3.towerhobbies.com/cgi-bin...?&I=LXKYK3&P=0
Crystal $7.59 http://www3.towerhobbies.com/cgi-bin...I=LXN503**&P=M

The servos in the picture will plug in to either of these receivers.

Carrell