I'd like to start patching courts, any tutorials I can read?

I've been a fan of everyone's great court, cyberface, stadium, roster patches and I'd like to try patching courts myself.
Is there any tutorial or something I could read?

I think theres none but i do remember Jao made a tutorial about court editing but it was for NBA LIVE series

Hmm. Noone seems to be very keen on giving me some pointers...