If you can’t view images in PDF files, you may need to update your FoxIt Reader.
I’ve been using FoxIt Reader, rather than Adobe Reader, to display PDF files. I noticed that it didn’t display images in a newly created document, so I chose Check For Updates Now, saw that there was a JPG graphic image update, grabbed it and an “upgrade”, and — voilà! — it fixed itself. I wish that all problems were so easily cured. While your PC is connected to the Internet, update FoxIt Reader by clicking on Help and then Check For Updates Now.
Adobe Reader’s problems: http://russbellew.spaces.live.com/blog/cns!D5F86162D2CCCC87!426.entry