It DOES seem like the media is all in there maybe. But according to the "file not found" display when I click on a pic or video.....it seems to be looking for it under the original name I named it (d7migrate).
When I originally installed, I used softalicious and it put d7 named d7migrate) into a subfolder of the original site. So it looked like this: http:mysite.com/d7migrate to access it. I fully completed the migration successfully, then simply moved it up a level in the file manager next to mysite.com, renamed it and changed those values you mentioned. It seemed to have worked, but all the files it searches for are under the d7migrate name still.
This sentance says nothing, and its possibly spellt wrong.