For the ArchiCAD Library 9.pla (rename it to something like "ArchiCAD Library 9.old") which is located in your Macintosh HD:Applications:Graphisoft:ArchiCAD 9:ArchiCAD Library 9, replace it with the new one (from the updater).

For the US Startup 9.tpl (rename it to something like "US Startup 9 9.old") which is located in your Macintosh HD:Applications:Graphisoft:ArchiCAD 9:ArchiCAD Templates:Active Templates, replace it with the new one (from the updater).