[aargh57]

I think that I bet the flop on this one but a c/r isn't bad if you think button is aggressive. I think the rest is standard. On the turn you didn't isolate so you don't have much of a chance to win right there but you pick up the inside strt draw and you have good relative position to the better. On the river I think it was a good fold. With that many people I think there's too good of a chance that you're beat to make calling good here enough.

Edit, I missed the double gutshot. I think that you could probably bet the turn with that hand.