On the river...call or raise?

------HAND 5------
Game #2603517494: Hold'em NL ($0.25/$0.50) - 2006/06/05 - 22:20:09 (ET)
Table "Victor" Seat 9 is the button.
Seat 1: HdlsHrsmn ($31.60 in chips)
Seat 2: BIGSAVE ($57.95 in chips)
Seat 3: ybnice sits out
Seat 4: djkalcon ($36.35 in chips)
Seat 5: Totti-No- ($16.50 in chips)
Seat 6: snoman- ($31.40 in chips)
Seat 7: anonimous ($59.75 in chips)
Seat 8: meetubeat ($53.30 in chips)
Seat 9: ROJEN ($35.86 in chips)
Seat 10: Norteous ($34.27 in chips)
Norteous: posts small blind $0.25
HdlsHrsmn: posts big blind $0.50
----- HOLE CARDS -----
dealt to anonimous [2c 2d]
BIGSAVE: folds
djkalcon: folds
Totti-No-: folds
snoman-: calls $0.50
anonimous: calls $0.50
meetubeat: folds
ROJEN: folds
Norteous: calls $0.25
HdlsHrsmn: checks
----- FLOP ----- [As 7s 2h]
Norteous: bets $1
HdlsHrsmn: folds
snoman-: folds
anonimous: raises to $3
Norteous: calls $2
----- TURN ----- [As 7s 2h][Th]
Norteous: bets $2
anonimous: raises to $10
Norteous: calls $8
----- RIVER ----- [As 7s 2h Th][4h]
Norteous: bets $2

results in white below



anonimous: raises to $22.50
Norteous: is all-in $18.77
Returned uncalled bets $1.73 to anonimous
----- SHOW DOWN -----
anonimous: shows [2c 2d] (Three of a kind, Twos, Ace high)
Norteous: shows [9h Ah] (A Flush, Ace high)
Norteous collects $66.54 from Main pot
----- SUMMARY -----
Total pot $69.54 Main pot $66.54 Rake $3
Board [As 7s 2h Th 4h]
Seat 1: HdlsHrsmn (big blind) folded on the Flop
Seat 2: BIGSAVE folded before Flop (didn't bet)
Seat 4: djkalcon folded before Flop (didn't bet)
Seat 5: Totti-No- folded before Flop (didn't bet)
Seat 6: snoman- folded on the Flop
Seat 7: anonimous showed [2c 2d] and lost
Seat 8: meetubeat folded before Flop (didn't bet)
Seat 9: ROJEN (button) folded before Flop (didn't bet)
Seat 10: Norteous (small blind) showed [9h Ah] and won ($66.54) with A Flush, Ace high