oh nooo! Forgive my poor english. How could I have erred so much in a first post by inadequately expressing the context of my question without specific reference to the supplied material; and mis-spelling Packman to boot!
You can tell it not to install the media packages, but i don’t see any point to it (just more time consuming). It shouldnt really matter because when you install the new media packs via the ‘one click’ because YaST should tell you if there’s any conflicts and ask what to do, at which point selecting ‘install with vendor change’ should replace the old ones with the new ones from the repositories in the *.ymp.