Regarding Conrad's Paragon/Renegade Bug in ME2:
This is actually a ME1 bug; somehow both the paragon and renegade plot flags become triggered after the final scene with Conrad. The bug itself has no effect on ME1 and lays dormant in the save file until that file is imported into ME2.
Final ME1 save plot flags for Conrad (left), ME2 save plot flags for Conrad (right).
As Holger1405 pointed out by April 2011 BW decided that Conrad's memory issue would be addressed in ME3. At the time of ME2's release ME1 wasn't available for the PlayStation, so the bug was exclusive to XBox and PC gammers who imported a save (and only noticed by players who hadn't used the renegade option).
With the bug in place you get all the dialogue wheel options with Conrad (training/armor/etc.); the only thing you don't get is the paragon flag confrontation with the bar owner before going into the bar.
If you have access to the Trilogy Save Editor it's possible to correct the plot flags before interacting with Conrad.
