awesome-wm

How to config awesome so it would start new application with two windows aligned like this: ---------------- |xxxxxxxxxx####| |xxxxxxxxxx####| |xxxxxxxxxx####| |xxxxxxxxxx####| ---------------- where "x" is for example conversation window in pidgin and '#' is buddy list window. In general I would like to specify width of right window and put it on the right side (maximized vertically) and the other window should take the remaining space. I already have some almost-working code, but it behaves strangely (it setups everything correct for pidgin, but it doesn't for gimp and v_sim, and