I have recently acquired your plug-ins. They are really nice.
My webpage is about free software, where I write about tutorials, tricks and so on (www.vivaelsoftwarelibre.com). As you can see in the URL, the logo is below the menu, in orange, with a V and a penguin.
add_filter( 'generate_logo', 'tu_change_logo' );
function tu_change_logo( $logo )
{
if ( is_page( 10 ) ) :
return 'URL TO CUSTOM LOGO FOR PAGE 10';
endif;
// Return the default logo otherwise
return $logo;
}