Nikey,
The program is not able to take advantage of a Dual Processor. The reason that there is no demo of Vogone is due to it being hard to completely protect the program, without harming the sounds of the audio. Even if we made a demo that wouldn't save, you could still play the file out and loop it back into your sound card to record the processed audio. This is the reason there is no demo.
You can hear some sound clips that have been processed by Vogone 2.103 at:
http://www.mtu.com/support/audio.htm