After you file

I'm using windows. Done with the CD... I do have a copy of the previewed copy before I e filed. But the return is not on the computer with turbo tax any longer or at least on when I bring up the program. I just don't know what to do now. I've never had this problem before. I know it needs to be mailed in but when it was rejected I tried to pay it direct debit, so I need to know can I just mail a check, what forms need to be mailed what paperwork needs to be included (w-2. 1099R, SS docs)?