There is no set order, just go into the users folder of the old drive, find your user name, open it up and start copying whatever you want to save.
If that was your hard drive you should know exactly where everything is, yes ?
After you`re done copying, go back and check it again, then after that go back and check it again. LOL I sound like Dustin Hoffman in Outbreak !!
The reason it bluescreened is because AMD and Intel are mortal enemies !!!
But seriously, you just can`t swap a hard drive like that, if the 2 machines were identical then it more then likely would boot ok.