iPhotoToGallery http://zwily.com/iphoto/ is an iPhoto plugin that's uses the Gallery Remote protocol. I tried to use it with Plogger Remote. iPtG kept saying "Bad username or password" even though I used the same login info as for my Plogger admin.
The link on the Plogger Remote page to other programs that use the Gallery protocol is broken. They moved the page. It should go to: http://codex.gallery2.org/Other_Clients
I don't have Aperture, so didn't test the ApertureToGallery plugin http://www.apertureplugins.com/