I think there is a typo in showphoto.php (5.13) :
Code:
Content visible to verified customers only.
(near line 490)
imgsrc = "{$Globals['origdir'
is the current code
I think it should be
imgsrc = "{$Globals['datadir'
Otherwise, when changing the "datadir" http path in the control panel, it keeps serving the full sized images out of "origdir", which is not the way it should work I think.
I might be wrong tough.