BB was 75/10/0.56. CO is 16.5/9/1.5
Party Poker 2/4 Hold'em (10 handed) from (Format: FlopTurnRiver)

Preflop: Hero is UTG with J, A.
Hero calls, 3 folds, MP2 calls, 1 fold, CO raises, 2 folds, BB calls, Hero calls, MP2 calls.

Flop: (8.50 SB) 9, J, 3 (4 players)
BB checks, Hero checks, MP2 checks, CO bets, BB raises, Hero 3-bets, MP2 folds, CO calls, BB calls.

Turn: (8.75 BB) 3 (3 players)
BB bets, Hero ?

Party Poker 2/4 Hold'em (9 handed) from (Format: FlopTurnRiver)

Preflop: Hero is MP3 with A, 5.
2 folds, MP1 calls, MP2 calls, Hero calls, 1 fold, Button calls, 1 fold, BB checks.

Flop: (5.50 SB) T, 5, Q (5 players)
BB checks, MP1 checks, MP2 bets, Hero ?

MP2 is 75/10/0.56, MP1 is 32/14/0.8, BB is 16.67/13.33/3.5, and Button is 23/9/0.75...

Hand 1: Raise/fold preflop. Its probably marginal either way, but I think call isn't that great. Definitely bet the flop when checked to, you do not want that to get checked through.

As to how you played, eh CO is probably drawing but BB could have tripped up. I'm probably calling down, but I wouldn't be in this spot to begin with.

Hand 2: Way too many numbers to pay attention to in your second post, this is a pretty simple fold. You're easily drawing to 2-4 outs, pot is small no need to put in anymore.

Party Poker 2/4 Hold'em (9 handed) from (Format: FlopTurnRiver)

Preflop: Hero is MP3 with A, 5.
2 folds, MP1 calls, MP2 calls, Hero calls, 1 fold, Button calls, 1 fold, BB checks.

Flop: (5.50 SB) T, 5, Q (5 players)
BB checks, MP1 checks, MP2 bets, Hero ?

MP2 is 75/10/0.56, MP1 is 32/14/0.8, BB is 16.67/13.33/3.5, and Button is 23/9/0.75...