Dom, in the thread you posted about partner accounts (
http://oprano.com/msgboard/showthread.php?t=43674 ) you list a few of your galleries as examples.
http://www.hard-hot-porn.com/175/
http://www.hard-hot-porn.com/333/
http://www.hard-hot-porn.com/626/
http://www.hard-hot-porn.com/628/
May I suggest that instead of using numbers to indicate you galleries, you instead use some key word rich text names. Ie:
http://www.hard-hot-porn.com/tranny_gets_ass_fucked/ or
http://www.hard-hot-porn.com/barely_..._face_sprayed/
I usually use the title of the site to create the folder that the site sits in.
In addition, inside the folder, instead of using index.htm, index1.htm etc (and I didn't really look to see what names you are using) I use keyword rich names for my index page and mirrors ie:
http://www.hard-hot-porn.com/barely_...n_her_face.htm
I have found that the SEs seem to eat this up, especially if I use similar keywords in the text of the gallery/free site page and the keywords and description sections of the page.
Just a thought and as always just imho.
edited in: The board is shortening the urls I used as examples, mouse over them and you will see the full url in the status line.