I can't find anything on the internet on this, so no help there.
First thing I would say is to do the steps listed on this link to set your Vista up correctly It is a list for Hoster but most also applies to Microstudio too.
http://www.mtu.com/upgrades/hoster/v...de-hoster4.htm
Are there any extra files in these zip files? There should only be 2, the MP3 and CDG files and both have to be named exactly the same.