Updating 9.1 components to 9.2

I tried to update some 9.1 components to 9.2, using the mirror sites, and discovered that the directories for 9.2 seem to be organized very differently from those for 9.1 and earlier. The result was that I couldn't convince the 9.1 version of Yast to accept the 9.2 directories as a valid source. Is there a way around that? Paul