I haven't used Samplitude Music Studio 2014 for a while but the last time I opened the Vita drum engine it opened without problems. But now when I open it I get a message saying I need to activate it before I can use it. When I click on the link it takes me to a page asking me to pay £29. Did something change?
http://imageshack.com/a/img537/9970/vJ3NLX.jpg