So what about the pf raise - should I just limp or is it ok?

On the flop I'm getting huge odds and have 2 overs and a back door flush so I assume the call is ok?

On the turn the BB is saying he has something and I don't so I fold - sensible? Is there any point trying to rep the king?

PokerStars No-Limit Hold'em, $0.02 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($1.92)
UTG+1 ($1.95)
MP1 ($1.74)
MP2 ($0.97)
CO ($1.43)
Hero ($8.04)
SB ($5.81)
BB ($1.70)

Preflop: Hero is Button with A, T.
2 folds, MP1 calls $0.02, 2 folds, Hero raises to $0.1, 1 fold, BB calls $0.08, MP1 calls $0.08.

Flop: ($0.31) 6, 8, 3 (3 players)
BB bets $0.06, MP1 calls $0.06, Hero calls $0.06.

Turn: ($0.49) K (3 players)
BB bets $0.1, MP1 folds, Hero folds.

Final Pot: $0.59