grunching...
definitely raise that flop when it's folded to you on the button with AT. I forget how hand coverter treats CO posters--I guess he checked? That's more dead money in your pocket.

you have to raise that flop. It is draw heavy: overcards, straights, flushes.

Since you raised the turn, the river bet will probably fold a worse hand, but there's chance that SB may want to pay you to see your cards. I'm 50/50 on bet or check it down.

I'm sure others will mention that it would have turned out differently if you'd raised pre-flop. You would have probably won on the flop, which is where the most of the profit in this kind of hand comes from.