here is a post from a while ago that includes pics about making oil...its not with resin its with leaves and shit you generally dont smoke...but i figure its (almost) the same method...youll just have to miss out the grinding it up and that bit...

http://boards.cannabis.com/showthread.php?t=10293

also i believe he uses a different alcohol to what nochowder uses but id go the iso stuff if i were you....

btw nochowers is probly better but this one has pics i thought it might help a little