Villian is 41/24/1.77 after 78 hands.

Party Poker 3/6 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with 6:diamond:, K:diamond:.
4 folds, Hero checks.

Flop: (3.33 SB) 9:diamond:, 7:spade:, A:diamond: (3 players)
Hero checks, MP2 checks, Button bets, Hero calls, MP2 folds.

Turn: (2.66 BB) 3:spade: (2 players)
Hero...

The fact that he never raised pf leads me to beleive he doesn't have an ace. He could be betting the flop with absolutely nothing.

What are your thoughts on:

1) Raising the flop and leading the turn?
2) Calling the flop and leading the turn?
3) Calling the flop and raising the turn?
4) Calling flop and turn and folding river UI?
5) Playing 2/4 until I'm rolled for 3/6 6max?

I like calling the flop and leading the turn.
Pot's small, I think c/r the flop is a little drastic. Also, if you let whatshisface hang around, you might be able to trap them both for a lot of bets when you hit your hand, since button is LAG. Also, the flop is A high, so if he's totally bluffing, it's not like you lose fold equity by waiting till the turn to bet (if MP2 folds the flop), since no overcards can come on the turn.
Oh, and I'm in the same boat as you right now. I have plenty to move up to 3/6 ring, but the 3/6 on stars is ridiculously tight and doesn't have many tables going, so I'm either going to wait for 3/6 6-max or just jump into 5/10 ring soon. If the party tables are anything like the stars ones, I would switch to 2/4 SH now and then roll yourself for 3/6 6max.

For some reason party doesn't have 2/4 six max.

I think I'm just going to drop back down to 2/4 full as it seems to be much more profitable for me.

I don't like calling the flop and leading the turn, because when it works, it doesn't win you much extra money.

If you think there's a good chance that button has nothing (it seems reasonable, given his stats), then I think c/r the flop and lead the turn is best, to try to shut out MP2 on the flop in case K-high is good.

After calling the flop, I think I would just call down UI, since I doubt this guy is laying down a pair. (If I thought he would lay down a pair, I'd c/r the turn.)