Okay, I finally got in. This is what it says:
When attaching a picture to a visit page, you must use the .jpg extension. Do Not Use .jpeg. Our system does not recognize this extension, and thus clients can only see pics with .jpg. Please use this extension starting immediately. A $2.00 penalty fee will be applied to those pictures uploaded with erroneous extensions.
They are talking about the filename extension, as I thought. Some programs save the file name as picname.jpeg. You can rename that picname.jpg. It will still be a jpg picture either way, but with jpg instead of jpeg as an extension, the client can see it.
It's probably kind of like the word files being named .doc or .docx. The older versions of Word can't open docx files. You have to save it with a .doc extension.
Anyway, it's an easy fix and has nothing to do with the photo itself, just the file name.
Time to build a bigger bridge.