^You could just go to My Documents > Hitman Bloodmoney folder > My Profile > then copy the folder which is in there and save it to another place.
You then can quit the game and pick up from the copied folder another day. Of course, don't forget to place the copy back into the original directory
I love this game. Sometimes it's easy though if one happens to find the 'correct' way of completing the level instantly. A buddy of mine sat hours doing New Life while i completed it without problems, quickly. small hint :