Front page exposure and others…

Hi,
On recent listings object of Homepage, I already set the query :

orderby=IDorder=desc;post_type=listing&listing=bijoux,vetements,echarpes,chapeaux,sacs,chaussures,accessoires

wich shows last listing, excluding certains categories.

I’ve tried to insert : meta_key=frontpage&meta_value=yes

like this :

orderby=IDorder=desc;post_type=listing&listing=bijoux,vetements,echarpes,chapeaux,sacs,chaussures,accessoires;meta_key=frontpage&meta_value=yes

but then it shows only frontpage enhanced listings.

I’d like to shows last listing, excluding certains categories and show frontpage enhanced listings on homepage.

Could you help.

Thanks