[Zope] adding an image

I need to add lots of images to my ZODB. I will use a ZSQL method to walk the staff list and build the file names to import. I will then pass this file like this: <dtml-call "manage_addImage('100_m','M:\\Officeweb\\photos\\100_M.jpg','100_m')"> But that doesn't import the image. It creates the object with a title and id but there is no image. i'm sure it is there and if I import it using the management screen it works just fine. What am I missing? -mjm