EverestPoker Game #1713762117: Table Berlin-21 - $0.25/$0.50 - No

Limit Hold'em - 15:54:53 - 2007/06/24
Seat 1: ReneLuske ($50.00)
Seat 2: sourire72 ($5.00)
Seat 3: PtitDop ($19.55)
Seat 4: geimin ($36.34)
Seat 5: Marco_V ($94.96)
Seat 6: phoboZ ($47.85)
Seat 7: Laed ($49.50)
Seat 8: KING-D ($19.65)
Seat 9: carlos@said ($58.45)
Seat 10: jimmy44a ($51.25)
Marco_V posts the small blind of $0.25
phoboZ posts the big blind of $0.50
The button is in seat #4
*** HOLE CARDS ***
Dealt to jimmy44a[Ad Td]
Laed folds
KING-D folds
carlos@said folds
jimmy44a calls $0.50
ReneLuske folds
sourire72 folds
PtitDop folds
geimin calls $0.50
Marco_V calls $0.25
phoboZ checks
*** FLOP *** [Tc Jd Ac]
Marco_V checks
phoboZ checks
jimmy44a bets $1.50
geimin calls $1.50
Marco_V folds
phoboZ folds
*** TURN *** [Tc Jd Ac] [Th]
jimmy44a checks
geimin checks
*** RIVER *** [Tc Jd Ac Th] [Jc]
jimmy44a checks
geimin bets $1.75
jimmy44a raises to $6.00
geimin raises to $23.00
jimmy44a ????

My image was tight. Villain had min raised before with a medium pair on the flop.
On the turn I slow played the nuts ... which put me on a very bad position on the river.
Any J would kill me, however any T (except AT) and any flush would pay my raise on the river. What do you do?