cap and then check through flop?

[silkyslim]

Typical loose passive table for the most part. no specific reads yet. now what does this mean when he caps then checks through the flop? So i think i have ~7 outs on the turn so I need to continue. does anyone fold?
river play?
Party Poker 2/4 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls, UTG+1 calls, <font color="#666666">2 folds</font>, <font color="#CC3333">MP3 raises</font>, <font color="#666666">2 folds</font>, SB calls, <font color="#CC3333">Hero 3-bets</font>, UTG calls, UTG+1 folds, <font color="#CC3333">MP3 caps</font>, SB calls, Hero calls, UTG calls.

Flop: (17 SB) Q[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, UTG checks, MP3 checks.

Turn: (8.50 BB) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, UTG calls, MP3 folds, SB calls.

River: (14.50 BB) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero ??