Bloating the Pot w/TPWK, so many bad plays here, help me sort them out

[rikz]

Party Poker No-Limit Hold'em, $ BB Villain (9 handed) converter

Villain is Semi-Loose Aggressive/Aggressive. 29% V$PIP, 7.5% PFR, 2.0 Total Aggression Factor from my PT Stats.

No other read at the time I played this hand.

MP3 ($47.3)
CO ($50)
Button ($49.58)
SB ($100.96)
BB Villain ($94.3)
Hero ($50)
UTG+1 ($46.02)
MP1 ($45.99)
MP2 ($74.8)

Preflop: Hero is UTG with K[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img]. CO posts a blind of $0.5. SB posts a blind of $0.25.
Hero calls $0.50, <font color="#CC3333">UTG+1 raises to $1</font>, <font color="#666666">1 fold</font>, MP2 calls $1, <font color="#666666">1 fold</font>, CO (poster) calls $0.50, <font color="#666666">2 folds</font>, BB Villain calls $0.50, Hero calls $0.50.

This seems like a good enough hand to limp UTG. Is it really? Should I have folded preflop? Should I have folded to a standard raise from anyone in late position, even the button or CO if I suspect an attempt to punish the limpers? How good is this type of hand preflop UTG?

Flop: ($5.25) 6[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Villain bets $3</font>, Hero calls $3, UTG+1 calls $3, MP2 folds, CO calls $3.

I bet out to see where I’m at. I got called, so that means villain has at least a K, but with a non-draw board a cold call might mean greater strength than just a K.

Turn: ($17.25) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Villain bets $5</font>, <font color="#CC3333">Hero raises to $15</font>, UTG+1 folds, CO folds, Villain calls $10.

This is now my attempt to raise for information, but now I’m not so sure. What information do I get when Villain just calls? I’m worse off now than if I’d just called. There are no draws, so what would Villain have bet $5 with that I beat? A diamond draw, maybe?

River: ($47.25) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Villain calls $75.30 (All-In), Hero folds.

Now, with the flush possible, and Villain all-in for a big amount, my TPWK just isn’t worth the paper the cards are printed on (which isn’t much since I’m playing on a computer). So, I fold. Anybody at all decide to call this?

Final Pot: $122.55