Sorry for bumping old thread
I know there is kick already 'enabled' in JK2 basejka.
But theres no kick in JKA basejka.
That's why there is a mod called JA+ (JAplus) for JKA
It enables kicks and many other stuff.
Feel free to download it from:
http://jediknight3.filefront.com/file/JA_Mod_23;41254
And official JA+ site is:
http://www.japlus.net/