Not sure if this is by design, or a bug, but when using the Digital Imaging plug-in, if there is a \ at the end of the directory path, it will first create the appropriate destination folder and then deposit the images in that folder. If there is NO trailing \, then it will create the folder, but the image will not be deposited in the folder (basically if you run this for multiple documents to the same folder, the first time is will create the folder, but no document, and then the rest of the times will will be fine since the folder already exists).