Fantastic!... thanks, Chuck. I looked at STANDARD ERROR again and corrected a couple of relative links I'd missed, and now the Member login works nicely.
The Admin login is still behaving strangely, though...Do you know of another standard VB3 template I need to correct to get the PP Admin panel login cleanly executed?
...If I go to http://domain.com/photos/adm-index.php
and login, I get sent to the VB3 login screen and the address is shown as ..photos/misc.php. When I login there, it displays a redirect message, then displays a blank page. I can, however, get logged onto Admin, but it takes these 5 steps:
1) Log in to Forum
2) Goto PP home
3) Click on Admin...I get sent to the light blue PP admin login
4) Click Submit...takes me back to PP home
5) Click Admin a second time...I'm into PP admin panel.