i can help you with mapping the keys, but i need to be able to understand it first.

gconftool-2 --set --type int /apps/preenv/Avatar/enable_dpad 1
gconftool-2 --set --type int /apps/preenv/Avatar/dpad_center_mouse 1
gconftool-2 --set --type int /apps/preenv/Avatar/dpad_center_x 120
gconftool-2 --set --type int /apps/preenv/Avatar/dpad_center_y 357
gconftool-2 --set --type int /apps/preenv/Avatar/dpad_key_n_key 119

the above is for the dpad? right the one on the left? do you just try out different numbers to see which one works?