For the ArchiCAD Library 9.pla (rename it to something like "ArchiCAD Library 9.old") which is located in your C:\Program Files\Graphisoft\ArchiCAD 9\ArchiCAD Library 9 folder, replace "ArchiCAD Library 9.pla" with the new one (from the updater).

For the US Startup 9.tpl (rename it to something like "US Startup 9.old") which is typically located in your C:\Program Files\Graphisoft\ArchiCAD 9\ArchiCAD Templates\Active Templates folder, replace "US Startup 9.tpl" with the new one (from the updater).