I want to upgrade to 12.5.2 from 12.0. I downloaded the upgrade installer from 12.x but it stalls @ 85% download telling me "this version of updater is obsolete and download the current version". My IT guy did it today and tried the same procedure tonight with the same results. I'm downloading this version at the site: "If you have version 12.0 or 12.0.1 - you must use this larger download (note- this download will update any version of VectorWorks 12 or 12.5):" But I get the message above. Any help?