Got it worked out.
If it helps anyone else.
My VB3 forum is set to,
path to cookies: /
cookie domain: "blank"
cookie name: " " (empty), found in config file.
PhotoPost Classifieds set to,
path to cookies: /
cookie domain: "blank"
cookie name: "bb"
With help here it certainly put me into the right direction.
Ended up using Fire Fox so I could see what cookies were used for
VB then rechecked for PhotoPost and found my difference.
Thanks for the help Chuck.