Most likely what you are seeing without images are the Auction lots and the related Inventory Items which were created when you imported. Images are not imported into AW2000. I can help you add images to the newly imported Inventory Items if you want. Or turn the newly imported Inventory Items into STock Inventory Items.
Any thing you have added yourself since you started using AW2000 will have the image because you added it in the Image portion using "Add Images".
Does that make any sense at all?