I would have folded 3rd, but I'm play pretty tight. Your cards are live, so I guess a call is OK, but I certainly wouldn't raise. BTW, this is a situation where a 2 flush would really help you.

I think the call on 4th is correct. Seat 8 looses one of his jacks, but you loose a 2 as well. You're basically drawing to 4 outs here, but with everyone checking you might as well pay to see 1 more street.

Fold fifth. Somebody has to have you beat, and you're drawing pretty thin.

The rest is fine, except you should keep your chip stack up a little more. Nothing worse than running out of dough when you've got a hand with callers. Of course, in this case it saved you money, but sitting short stacked is -EV.