medium pair vs MP raiser, HU

opp is a 23/16 tagg
this is a reasonable flop for me, clear fold on the river but i'd like your ideas on how to play this range of hand here say hands 66-99 here as I'd likely 3bet 1010+
i dont like CR the flop as I'm folding only junk and getting called by better

Full Tilt Poker Game #7273955730: Table Highacre (6 max) - $1/$2 - No Limit Hold'em - 13:51:09 ET - 2008/07/18
Seat 1: PimpinDonks ($200)
Seat 2: Spear1 ($200)
Seat 3: dwbh28 ($206.45)
Seat 4: PLATYPUS-9 ($182.75)
Seat 5: Lacko78 ($207.35)
Seat 6: jay-william ($183.45)
Spear1 posts the small blind of $1
dwbh28 posts the big blind of $2
5 seconds left to act
Lacko78 posts a dead small blind of $1
Lacko78 posts $2
The button is in seat #1
*** HOLE CARDS ***
Dealt to dwbh28 [7h 7c]
PLATYPUS-9 folds
PLATYPUS-9 is sitting out
Lacko78 raises to $8
jay-william folds
PimpinDonks folds
Spear1 adds $1
Spear1 folds
dwbh28 calls $6
*** FLOP *** [4c 8d Qs]
dwbh28 checks
Lacko78 bets $15
dwbh28 calls $15
*** TURN *** [4c 8d Qs] [2c]
dwbh28 checks
Lacko78 checks
*** RIVER *** [4c 8d Qs 2c] [Ad]
dwbh28 checks
Lacko78 bets $40

I think that c/c flop is fine. However, on the river you must fold. If it was a complete brick I would call though.

C/ring that flop kind of sucks since we turn our hand into a bluff and only get called by better. We have value against this guys range, so I would only c/r the flop if I knew opp could get off of a worse A or something like that on a ATT flop for example

check/fold everywhere