Web Easy will change the names of image files to numbers under any of
the following circumstances:

- The original image file is not in GIF or JPG format.
- The image was resized, cropped, rotated, colorized or otherwise
modified in Web Easy.
- The image is overlapping another item on the page and the site is
built as standard HTML (as opposed to Dynamic HTML).

Basically, to ensure that Web Easy does not change the names of images,
make sure you don't modify them at all in Web Easy - if edits are
required, make them using an image editing program - and make sure they
either don't overlap anything else on your page, or build your site as
Dynamic HTML.