Mark Stoner:
Try this: in ArchiCAD, go to Surface Settings, click on New..., select New from Catalog. At the bottom of the New Surface dialog box is a globe symbol, click on it and select
Additional Surface Catalog for SSA Users... . This should take you to a web page that has the download link.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David