I have used 6.0 for a long time. I am farily proficient, but I am not experienced with midi and vst. I purchased ezdrummer, but just read a review of 6.0 that said it is great except for it's lack of ability to use midi and vst.
Not even sure... 6.0 Sam is like 2001 release. Samplitude is a Audio Editor first and formost, arguably the best on this planet too.
the latest release Samplitude 11 does work with MIDI and VST, VSTi... You might want to contact Tim Tolbear of MAGIX, he can possibly help but 6.0... thats not even produced or supported anymore. I have it, but it came out roughly the same time that Windows released 2000 (right after that nightmare called Windows ME). Below is the news letter, in it is Tim's contact info.