Nut Straight... so?

[TrueBritt]

Party Poker
No Limit Holdem Ring game
Blinds: $1/$2
9 players
Converter

Pre-flop: (9 players) Hero is BB with :qc :th
5 folds, CO calls $2, Button calls $2, SB calls $1, Hero checks.

Flop: :jc :ts :kh ($8, 4 players)
SB checks, Hero checks, [color=#cc3333]CO bets $7</font>, Button calls $7, SB folds, Hero calls $7.

Turn: :as ($29, 3 players)
[color=#cc3333]Hero bets $7</font>, CO folds, Button calls $7.

River: :4s ($43, 2 players)
Hero checks, [color=#cc3333]Button bets $50</font>, Hero calls $50.

What do you think of this call?
Should I have bet more on the turn?

[jkkkk]

Man if you was truly British you would use the converter properly.