The problem appears to be whether or not the link has a trailing slash or not.
I noticed that the link to the album index at the top of the page ([i]Meeting the Family[/i]), doesn't have a trailing slash, and the page retains the full format.
Whereas the link to the individual page within the album index ([i]3[/i]) [i]does[/i] have a trailing slash and it creates a page without the the outer design.
Does this help isolate the problem, or am I just pointing out the obvious to you?
Good luck.