8-) ... the "Export" was my fault - obviously I forgot to remove it from the name, trying to deliver it as fast as possible. Just rename the file and you're fine.
Did you check if the Vienna Instruments included in the tutorial MIR project have loaded properly? Careful - they are "RAM Optimzed", so only those samples are loaded that were used for Jay Bacal's realization of the included MIDI file of that piece. Do you hear anything when clicking the VI's virtual keyboard?
How did you connect MIR with Cubase? LoopBe30? Do you see incoming MIDI data being indicated in the Instrument List? Do the "Magic Eyes" of the MIR-Icons show any audio activity?
Is the MIR engine actually STARTed? (That would be the button on the left of the Venue Selection bar). .... I was cought by that myself just recently. ;-)
HTH,
/Dietz - Vienna Symphonic Library