2 confusing hands

[Stork]

I'm very new to online no-limit games, and realized I need a standard line for this type of situation:

villain is 43/27 over 44 handsParty Poker No-Limit Hold'em, $ Hero (6 max, 6 handed) FTR converter on zerodivide.cx

CO ($45.12)
Button ($29.28)
SB ($40.05)
Hero ($41.70)
UTG ($35.18)
MP ($53)

Preflop: Hero is BB with 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.25.
[color=#CC3333]UTG raises to $1</font>, [color=#666666]1 fold</font>, [color=#CC3333]CO raises to $3</font>, [color=#666666]2 folds</font>, Hero calls $2.50, UTG calls $2.

Flop: ($9.25) 6[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/heart.gif[/img] [color=#0000FF](3 players)</font>
Hero checks, UTG checks, [color=#CC3333]CO bets $5</font>, Hero calls $5, UTG calls $5.

Turn: ($24.25) J[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](3 players)</font>
Hero checks, UTG checks, [color=#CC3333]CO bets $10</font>, Hero calls $10, UTG calls $10.

River: ($54.25) 9[img]/images/graemlins/club.gif[/img] [color=#0000FF](3 players)</font>
Hero checks, UTG checks, CO checks.

Final Pot: $54.25
and similarly:
Party Poker No-Limit Hold'em, $ Hero (6 max, 4 handed) FTR converter on zerodivide.cx

I was planning on folding to a river bet.

Button ($50)
SB ($141.80)
Hero ($49.15)
UTG ($16.05)

villain is 45/12.5 over 24 hands

Preflop: Hero is BB with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.25.
[color=#666666]1 fold</font>, [color=#CC3333]Button raises to $2</font>, [color=#666666]1 fold</font>, Hero calls $1.50.

Flop: ($4.25) 9[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](2 players)</font>
[color=#CC3333]Hero bets $3</font>, [color=#CC3333]Button raises to $6</font>, Hero calls $3.

Turn: ($16.25) 7[img]/images/graemlins/club.gif[/img] [color=#0000FF](2 players)</font>
[color=#CC3333]Hero bets $10</font>, [color=#CC3333]Button raises to $20</font>, Hero calls $10.

River: ($56.25) 5[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](2 players)</font>
Hero checks, Button checks.

Final Pot: $56.25

and finally, one last similar hand:

villain made the same play on a paired board alittle earlier against me,except his turn bet was an all-in for alittle less than the size of the pot, and I folded overcards.

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) FTR converter on zerodivide.cx

Hero ($39.75)
Button ($50.95)
SB ($24.77)
BB ($13.57)
UTG ($103.84)
MP ($43.13)

Preflop: Hero is CO with 9[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.25.
[color=#666666]2 folds</font>, [color=#CC3333]Hero raises to $1.5</font>, [color=#666666]1 fold</font>, SB (poster) calls $1.25, [color=#666666]1 fold</font>.

Flop: ($3.50) 5[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img] [color=#0000FF](2 players)</font>
SB checks, [color=#CC3333]Hero bets $3</font>, [color=#CC3333]SB raises to $6</font>, Hero calls $3.

Turn: ($15.50) 2[img]/images/graemlins/club.gif[/img] [color=#0000FF](2 players)</font>
[color=#CC3333]SB bets $8</font>, [color=#CC3333]Hero raises to $16</font>, SB calls $9.27 (All-In), Hero calls $1.27.

River: ($50.04) 8[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](2 players, 1 all-in)</font>

Final Pot: $50.04