It is actually working… visit this page:
Or any other entry, it does not really matter.
The issue is the theme is hijacking the onclick event for the link and trying to display the vCard as the page content and causing an error rather than letting the browser display the save download browser popup.
Unfortunately there is really nothing I can do about this. You can look thru the theme settings to see if there is an option to display this feature. You could also try contacting the theme’s support and asking them if there is a way not not break download links.
I hope this helps! Please let me know.