Scala and Steinberg VST microtuner?

Hi there,

when I type "Set synth 133" in Scala, it says something like "Steinberg Cubase/Nuendo VST microtuner (via xml tuning file)". Incidentally, at the school where I study, the Cubase VST microtuner happens to be installed on one of the computers. But I'm now getting stuck. First of all, does anyone here have an idea how I should load the xml file into it? And then, is there (somewhere) some kind of documentation on the format of this xml?

Thanks for any suggestions.

Petr