Oh, and Matt, before you ride off into the sunset in the secure knowledge that you're right, you might want to experience more of life- especially the bit about how to use a flash and what's practically useless on one.
First off the OP or you guys can do it however you want. My word is not law, but when all the content to a post is "get flash off camera" that vague advice sucks and is rude to the OP asking for help. Just like everyone else posted a method for OCF I gave him an option I use with success with on-camera flash. Which IMO is easier for me, your mileage will vary. But continue attacking me for calling someone out and providing content to a thread.
edit: then notice that a couple posts later Joe posted his experience on how he worked with this problem. So props to Joe for being mature and adding his content to the thread without retaliating against me.