As well as making the macro in Jamba (which you have done), you need to make a special FTL setup in HotKeyNet for the same key that you assigned to the macro.

This thread explains how to do it:

http://www.dual-boxing.com/showthread.php?t=17555

So, make sure if your attack button is 2 that 2 is bound to the macro and 2 is assigned in the HotKeyNet to be an FTL key.

<ApplyTemplate FTL 2 2>

Hope that helps.