i am putting together a galley and on my hompage i have small thumbnails of 9 main galleries. when you click on them i goes to that gallery showing thumbnails of all sub gallerys and so on. this is my problem on the second page i want the thumbs to be bigger than first page but no mater what they only show at the same size as mainpage, is there some way to do this with zenphoto?

Yes, of course, you have to modify your album.php to do that:
http://www.zenphoto.org/documentation/zenphoto/_template-functions.php.html#functiongetCustomAlbumThumb
http://www.zenphoto.org/documentation/zenphoto/_template-functions.php.html#functionprintCustomAlbumThumbImage

More info about themes on the theming tutorial.

thanks sorted