I decided to download TYPViewer.  Following the link in the wiki took me to sites.google.com/site/sherco40/.  This page states the latest version is 4.5 20.  Yet in a blog on a separate website the writers were referring to newer versions, such as 4.5.35.  I cannot find any site that offers anything newer than 4.5.20.  Is the Google site the correct site for the latest version?