Thanks for the reply. It appears as if I am logged in as my username appears on the PhotoPost pages. That said, I can't log out - the appropriate dialog appears when I click 'logout' but when I refresh the page nothing changes and I'm not presented with any option to login.
I did enter a cookie name in step 4 of the install but I'm suspecting it was wrong based on the oddities listed above ... and now I'm trying to figure out where I can verify/modify it.
Please advise / thanks!