As for the paragon/renegade check-choice between Morith and Samara
The first time you can do it cause by transfering your character from ME1
you have enough renegade or paragon points - but if you play with the same character again ....
Your paragon and renegade points are empty THIS IS STUPID :S
But i know a glitch here that can help ya
In the start of ME2 game when you give the medigel to the traitor for curing his leg
you take there some renegade or paragon points
there you can quicksave your game
and load it again - if you do that a couple of times
your renegade/paragon bar will be filled soon
But know this you cant see how much paragon/renegade points have in the start
cause the squad selection is gray
just do it many times - think 20 save/loads are enough to get at least one square filled
and continue playing your game
Thats all folks !!!