If you open a photo in, say, Microsoft Photo Editor (NOT paint tho, won't work), you can select an area of the photo, copy it, go to your database and paste it in a text item....

Now, there are lots of clippers (desktop image clippers) that could take a picture of your thumbnail in explorer, keep it as a .jpg, then to the trick above....
(A desktop image clipper is a program that let you select an area of your dekstop and clip it, instead of the Prt Scr that takes an image of the whole desktop)

Voilà.

Just an idea.

Tom