I downloaded the new app from Simplify Media last week for viewing photos from you iPhoto library on your iPhone. Simply Media for photos uses the same Mac or PC application as Simplify Media for your music files. On the iPhone, it is a separate application.
I had some trouble with the caching of the photos from the Mac’s library to the iPhone. Simplify Media released an update today which seems to have corrected (my problems at least) and I was finally able to see my photos remotely.