Need help on first three table attempt - bad preflop play ahead.

[Spook]

I started multitabling just a week or so ago, just two tables at 3/6. I was doing fine and suddenly today party popped up that i was ready to take a seat at a third table. OK.
Didn't go so well, I think I played rushed and bad.
here are some hands from that third table.

Hand one.
Party Poker 3/6 Hold'em (9 handed) converter

Preflop: Hero is MP2 with Q[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img].
UTG folds, UTG+1 calls, MP1 folds, <font color="#CC3333">Hero raises</font>, MP3 folds, CO folds, Button folds, SB calls, BB calls, UTG+1 calls.

Flop: (8 SB) J[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, BB calls, UTG+1 folds, Hero calls.

Turn: (5.50 BB) 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, BB folds, Hero calls.

River: (7.50 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero ???</font>
Final Pot: 13.50 BB

I am guessing the preflop raise was too much, but then I was calling with my backdoor flush and inside straight draw. What do I do when I hit top pair?

hand two
Party Poker 3/6 Hold'em (8 handed) converter

Preflop: Hero is Button with Q[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/club.gif[/img].
UTG folds, <font color="#CC3333">UTG+1 raises</font>, MP1 folds, MP2 folds, CO folds, Hero calls, SB folds, BB calls.

Flop: (6.33 SB) 5[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets</font>, <font color="#CC3333">UTG+1 raises</font>, <font color="#CC3333">Hero 3-bets</font>, BB folds, UTG+1 calls.

Turn: (6.66 BB) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG+1 bets</font>, Hero calls.

River: (8.66 BB) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG+1 bets</font>, Hero folds.

Final Pot: 9.66 BB

again, I get in trouble before the flop even thinks about coming. I don't know how I played the flop - I wanted to see where I was, and I was behind when the Ace hit, but I guess I called thinking I had outs to the river.\

hand 3
Party Poker 3/6 Hold'em (10 handed) converter

Preflop: Hero is UTG with 2[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img]. Hero posts a blind of $3.
UTG+1 folds, UTG+2 folds, MP1 calls, <font color="#CC3333">MP2 raises</font>, MP3 folds, CO calls, Button folds, SB folds, Hero (poster) calls, MP1 calls.

Flop: (8.33 SB) 8[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP1 raises</font>, MP2 calls, CO folds, <font color="#CC3333">Hero 3-bets</font>, MP1 calls, MP2 calls.

Turn: (8.66 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, MP1 calls, <font color="#CC3333">MP2 raises</font>, <font color="#CC3333">Hero 3-bets</font>, MP1 calls, MP2 folds.

River: (16.66 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, MP1 checks.

Final Pot: 16.66 BB

I thought I had a pretty strong hand here, I might have been able to value bet the river and was really hoping to get a flush, but backed down.

The other intersting hand was a runner runner bad beat story.