If you are runing in to any trouble with your photos not showing up in Internet Explore there is a very easy fix for this:
1. Open up the photos in Photoshop.
2. Go to Images at the top of the program next to Edit.
3. Select Mode and change the mode to RBG. (More than likely your photo is set to CMYK).
4. Reupload the photos.
I ran in to this problem lately when I had to make a layout of a property which was created in Illustrator and then took the photo in Photoshop to convert the pictures to JPEG format so I could upload them for the website.
You will also run in to this if you are taking photos from a PDF that was used for printing a flyer or something of that sort. The distinct difference between print media and the internet is that print media is mainly done in a CMYK format and the internet is RGB format.