What i would do is create different groups for the parts..like, say its a chair leg i'd have the groups, leg and rivet, if the inside of the holes need to be mapped i'd then split off the parts that make up the hole and call them hole (being obvious there LOL) then when you open it in uvmapper you can select and map the parts seperately...then when your down you can group them as one part with one material if need be (in uvmapper i mean)...it may be easier to show you than explain it so if you want to send the model fire back..Steve