This has been hinted at but let me see if I can clarify what's going on for me.
I have one category where Act as Members' Category is set to Yes. In this category I have logged in as a registered member and added photos. OK so far.
Issue 1) When viewing an image in the members category (showimage) the member's name appears in the navbar as Member's Album >
Joe's Images but the link points to
http://www.japan-101.com/photos/browseimages.php? hence you get "No Category specified. If you followed a valid link ..." when it is clicked.
Issue 2) When viewing the member's category (browseimages) the member's name does not appear in the navbar, just 's - as in apostrophe + s.
Examples:
browseimages:
http://www.japan-101.com/photos/brow...=172&userid=12
showimage:
http://www.japan-101.com/photos/show...=172&userid=12