Our apologies --  we are currently updating our SAS software.  We are behind on updating it, but hope to have it by September 16, 2019.  Please check back then.  Thanks for your patience.  If you definitely need to use it before then, contact Steve Hillis (email: steve-hillis@uiowa.edu) and let him know what analysis you need it for.  If feasible, you will be sent a temporary workable version of the software.