Reprint your schools transcript application sheet from aadsas, then have your transcripts sent in again. There is a spot on the sheet for updated transripts so make sure you mark that on the aadsas sheet. After a week or two call aadsas and ask if they have received the new transcripts and ask them to make the change. I did this a week ago and they updated it while I was on the phone so the schools can see the online change instantly. AADSAS will then send your new transcripts out with the next batch they mail. I also wrote a letter to my schools explaining my change in grades and faxed it to them so they could take note of the change.