[Zope] manage_upload -> SQL-db with pictures possible?

Hi I'm trying to get pictures uploaded to a SQL database. I've been trying all sorts of combinations with manage_upload to dummy objects and then dumping that obj to the (SQL-) db with no success. Or rather I cant succeed in actually storing the picture in the db, whatever it is I'm storing, can't be viewed as jpegs... Can it be done and if so how? Before anybody screems, yes I know it's concidered bad habit to store pictures in the DB, but hey - it's only thumbnails and I need to access them from other programs, so I think it's a valid thing to do in this case ;) /Jacob Lundqvist