Me and registrar disagree: Limp-calling with suited connector

[Soulman]

Party Poker No-Limit Hold'em Tourney, Big Blind is t1600 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

UTG+1 (t13466)
<font color="#C00000">MP1 (t16702)</font>
MP2 (t57225)
<font color="#C00000">Hero (t60128)</font>
CO (t29584)
<font color="#C00000">Button (t29455)</font>
SB (t18418)
BB (t12205)
UTG (t19731)

Preflop: Hero is MP3 with 7[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls t1600, <font color="#666666">1 fold</font>, Hero calls t1600, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t8000</font>, MP1 folds, <font color="#CC3333">Hero</font> ?.

No reads on villain, since he sat down 3 hands ago and hasn't played a hand. I raised and took it down from the CO once, so nothing to go on for him either.

One more piece of info: the table is tight, with very few resteals. PF raises often take it down.

What's your play here and why?

(reg, cool if you don't say anything at first ok [img]/images/graemlins/smile.gif[/img] )