Rokdownloads 1.0.1 plugin not working in Virtuemart 1.1.5, have tested few other plugins all worked in VM except rokdownload plugin not idea if issue is Rokdownload or VM.
By not working I mean instead of showing download link, it output plugin syntax.
I saw you also asked in RocketTheme forum, let's see if they can give us some more info (as you said, other plugins work fine so there could something related to the way RokDownloads work).
Yes, I did, tried changing everything but no go, maybe you could bump the topic in Rockettheme.