well i did your tests.. and it works fine with me..
only differences to your install:
1. my gallery directory is outside of my forum directory..
2. in the file: forums/includes/vbgallery/style_fetch.php I changed
Code:
Content visible to verified customers only.
to
Code:
Content visible to verified customers only.
I still think it has todo with your tabs..
for forum i do not see GALLERY_DEFAULT_STYLE.. for Gallery index I do See the GALLERY_DEFAULT_STYLE. as logged in.. as logged out as logged in again.
if you go to edit categories you can set different styles for each category... (that works also)
Luc
I am on holiday so only checking sites and mail every 2 days