If you enter local paths to images (e.g. just an image name, or
a folder plus image name), then the data tool will look for these
within the source images folder you specify. So in the case above, if
you selected a folder on the C: drive called 'source', it would look
for those JPG files in C:\source.
You can also get
the data tool to retrieve web images, if you have a full URL. In this
case, the data tool will still need a 'source' folder, but will
retrieve the web image, copy it to this source folder and then process
it and position it in the destination folder. For
example:
If you leave the image field blank, then no image will be
created in the new 'Images' folder system. However, this will not
delete images that are already on the site in that
location.