Casting wheels in resin help

Hi
I am going to modify some wheels and recast them in resin. Does anybody know of a guide anywhere?

Only ones I can think of off hand:

http://www.automotiveforums.com/vbulletin/showthread.php?t=188447
http://www.automotiveforums.com/vbulletin/showthread.php?t=189039

http://www.automotiveforums.com/vbulletin/showthread.php?t=881146

Try and search harder, this post was still on the first page of the forum :runaround: