There is not a photo gallery for members. Sorry (speaking for owner, GSAdmin).
Members get pictures displayed by uploading to a photo-storage site, then including the URL in their post. An example would be David Bott's recent post which included a photo stored at:
http://gallery.avsforum.com/data/509/medium/photo22.jpg (Hopefully the URL displays & not the picture itself)
If you right click on any of the posted pictures & choose "properties" you will see where that member has stored their pictures.
Again, GSAdmin (the forum owner) does not have the memory nor software to provide this function.