I'll try and make solving the immediate problem as simple as possible.
To fix your ratio it should be rather simple even if you don't know any knowledge of anything other than how to download, which you obviously were able to.
1. Do you still have any of the files you downloaded from
this torrent?
2. Double check that you have them exactly how they were when you first downloaded it.
3. Try to download them again exactly the same way you did the first time, and choose to save them in THE EXACT SAME PLACE.
4. If you have a normal bit torrent client, it should begin to seed whatever files you do have while BakaBT blocks you from downloading anything further.
I honestly don't know if it is possible to give simpler instructions that that.