Hey djrobs. I play in the Adwords game a little so I'll try to shed some light on what's going on behond the scenes.

A daily budget of $10 might not be enough for total exposure. If Google approved your ad and your campaign is active then it will only show during a certain time in the day. Google determines this by your daily budget, and how popular the keyword is. They place your ad during a time they think is best for you to hit your daily budget. So if you don't see it right now, it's probably not that time. There is also no way (that I know of) for you to determine that time yourself.

If anyone can add to what I said that would be great because I know it wasn't a lot of detail. I usually outsource any SEM work I come by so I'm not an "expert" for say, but that's basic info right there.