Ok thanks ...
I was thrown off by the incorrect information on the splash screen. I cannot post a link to this page or upload a screenshot URL as the editor keeps stripping out every attempt to post a link ... So if you type the main domain name then add /Products/Rapture-Session it only lists VST3.
Cakewalk seems to install certain things into folders which are not listed either in the installer or the Download Manager options. Will check those for the missing VST. I thought I had already done this, but when an installer is designed to scatter its files around your HD it can be tricky to locate things.
Cheers
Richard