R help - Nov 2003 - connect RAqua 1.8.1 with external editor (alphaX)

Hi

This might be a trivial question or as well put forward in the wrong 
forum, but I try anyways. I'm new to R and have installed the latest 
mac version for osx. I would like R to communicate with an external 
editor e.g. alphaX, or maybe more precisely the other way around. This 
doesn't work at present, I can't open or switch to R from alphaX. Does 
anyone have some advice to me how to solve this problem or any 
suggestions what other forum to address this matter?

-Andreas