Replying to Torrent question

I use torrents from Oink and demonoid often and azeurus is my client. i noticed that a few albums and shit were duplicated as i imported them into my itunes album/music section of my finder(mac). i deleted a few folders from my azuerus folder because they were duplicates and i didnt think i needed them because they were already saved in my itunes music library. well when i opened azeurus later on none of these torrents were seeding out to others which fucks up my share ratio. i was wondering if anyone knows of a way to have these torrents seed out from my itunes music library folder so i can still have them to listen to and seed without creating duplicate files.