Thanks for the responses, folks.
While I didn't see the whole roll, I did see that the strip my friend had, looked like the above picture posted by telekinetic, with the double row of connected tickets. He separated them and gave me the "keep this coupon" part.
So I'm assuming it held 1000 tickets.
Btw, I realized before I bought the tickets that I more than likely wouldn't win. I had gone to one of those church camps as a kid, myself. Had a good time, (got to handle a boomerang for the first time) and wanted to help some other kids have a good experience, as well.
Besides, my luck doesn't run that good.
Lindy, I don't know if I'll need to be present to win, or not. I'll have to look into it.