Was I right to fold two pairs in this case?

EDIT: also, there is a flush draw. I had to read it again, sorry, I'm working at the same time.

PokerStars Game #1296868926: Hold'em No Limit ($0.05/$0.10) - 2005/03/03 - 02:30:59 (ET)
Table 'Euterpe IV' Seat #5 is the button
Seat 2: dirtyc2k3 ($1.90 in chips)
Seat 3: Loafus ($2.85 in chips)
Seat 4: peeping_pat ($9.70 in chips)
Seat 5: Big Dan 56 ($5.80 in chips)
Seat 6: canadian lad ($10.55 in chips)
Seat 7: polskarico30 ($1.90 in chips)
Seat 8: nabucco ($9.80 in chips)
canadian lad: posts small blind $0.05
polskarico30: posts big blind $0.10
*** HOLE CARDS ***
Dealt to nabucco [Ad Td]
nabucco: calls $0.10
dirtyc2k3: folds
Loafus: folds
peeping_pat: folds
Big Dan 56: calls $0.10
canadian lad: calls $0.05
polskarico30: checks
*** FLOP *** [Ah Qh 6h]
canadian lad: checks
polskarico30: checks
nabucco: bets $0.50
Big Dan 56: calls $0.50
canadian lad: folds
polskarico30: folds
*** TURN *** [Ah Qh 6h] [Ks]
nabucco: bets $0.50
Big Dan 56: raises $0.50 to $1
canadian lad is sitting out
nabucco: calls $0.50
*** RIVER *** [Ah Qh 6h Ks] [Th]
nabucco: checks
Big Dan 56: bets $1.60
pepper0782 joins the table at seat #9
canadian lad has returned
1Big Johnson joins the table at seat #1
nabucco: folds
Big Dan 56 collected $3.25 from pot
*** SUMMARY ***
Total pot $3.40 | Rake $0.15
Board [Ah Qh 6h Ks Th]
Seat 2: dirtyc2k3 folded before Flop (didn't bet)
Seat 3: Loafus folded before Flop (didn't bet)
Seat 4: peeping_pat folded before Flop (didn't bet)
Seat 5: Big Dan 56 (button) collected ($3.25)
Seat 6: canadian lad (small blind) folded on the Flop
Seat 7: polskarico30 (big blind) folded on the Flop
Seat 8: nabucco folded on the River

no brainer...

Yes, nice lay down.