The Photo Center "add-on" is a joke I'm afraid, and a sad one. Imagine yourself back from holiday and trying to allow your friends to see your new 100+ pictures, but you have to "publish" them one by one...
I would be ashamed to do this in a school project, let alone a "product feature"...
Your best option is to stop waisting your time and use the cloud, I'm afraid.
At least in default version (1.0), didn't try "v-next".