Hi Tom,
I'll answer here and drop you an email. It sounds like you have both a constant feed and a switch leg there. Normally the Red wire would be the switch leg so connecting the black wire from the fan to the red wire in the box and connecting white to white should get you fan to be controlled from the switch. You can cap the black wire off with a wirenut. If you have a fan with a light you could do something a little different but I don't want to confuse this.