You can see for car bumpers Auctiva gives category no. 174049, and this is what I've been using, HOWEVER, as explained this category seems to have suddenly stopped working on Auctiva.
I checked category nos. using ebay uk site map and this indicates category no. 74800, but when I use this cat no I get "Ebay listing failed to post for the following reason: item condition is required for the selected category. The specified category is invalid. Please choose a valid ebay category."
Mike I really need Auctiva's help here!