Until you get the jpegs you could always just copy the images from the pdf file (though they will be low resolution compared to the original files)

In adobe reader, either use the snapshot tool, or use the select tool, clicking the picture and right click - copy image, then paste into an image editor (or even mspaint) and save it.

This is assuming that the creator of the pdf did not select to enforce any security restrictions on copying images from the pdf, but thats unlikely using default settings.