Copy the folder to the corresponding save folder on your computer. you must rename that folder to the same format as your save files (i.e. 000002 - Game1). You don't need to rename it to the correct number so long as the format is preserved. Click on load game and find the file - the number is likely to be different, and may belong to either character (there are two of them).  An easy way to resolve this is to move all of the folders in at once and rename them one at a time. The rest of the folders that do not follow the format will be named as "Quicksave" in the load screen. The achievement list is described below as such : (achievement - folder name)

Destiny Dominated, The Sith Lord - Destiny Dominated
Simply beat the game to get the dark ending. Load the game once and return to main menu to get the character to replace the sith lords on screen.

Pain Relief - pain relief, pain relief 2
The first folder might have some issues because Sion dies immediately after loading. Otherwise the second issue has the last segment of the fight, just beat him from there.

Hunger Strike,  Finders Keepers - NIHILUS
Defeat Nihilus and get Visas to bring you the mask afterwards.

Unlimited Power - unlimited power
Level up twice and learn Drain Life and Death Field

No Jedi Can Stop Us - no jedi can stop us
Proceed through the courtyard and talk to Kreia

Lost in Your Work - lost in your work  
Talk to T3 and select the repair option.

Martial Law - martial law 
Walk ahead and kill Talia.

Assassination Protocol: Active  - assassination protocol active
Talk to HK-47 and ask about how to kill Jedi.

I hate everything about you - i hate everything about you
Talk to the handmaiden and use the following dialogue options - why are you angry, trust visas, sacrifice me to atris

Nothing Personal - nothing personal 
Talk to Zherron to start the assault. After the cutscenes, the merc will walk in and ask you to stand aside. Do so and let them kill Adare.

Ancient History - ancient history
Talk to the Disciple.

Laugh it up, Fuzzball - laugh it up, fuzzball
Talk to Hanharr with the following options: are you alright -  question for you - why do you follow me -  so one day, you will try to kill me - what debt are you talking about - what kind of debt - you are a fool - but to adhere - all you need to do - then you shall always be prey - you are already damned - then walk my path.

If Only You Knew - if only you knew
are you alright -  question for you - why do you follow me -  so one day, you will try to kill me - what debt are you talking about - what kind of debt - you are a fool - but to adhere - all you need to do - then you shall always be prey - you are already damned - then walk my p