There is a package called renamepics that can be used to rename pics
from the usually not very friendly camera filename to a filename based
on Date:Time information contained in the exif data.
It also can copy some, maybe not all, of the exif data to the image
file's Properties, File tab page 3/3 Comments section.
I have used renamepics reasonably successfully with a little app I wrote
a while back "Nicki's USBCamera-To-HardDisk-Thingy V0.3" - on hobbes as
If it sounds like it may be useful you should find it here