unless plurk is out of order, you should have an option to share photo, link, etc.

nope. The "share photo" tab is missing on my iPhone app. I've logged out, back in, deleted the app & reinstalled. it's just not there.

maybe it only works from a computer, but not on a cell phone.

the app which I think the best is UniPlurk

easy to work with, share or delete and track too.