Hi there,
I have only played with this software a little bit and sadly there are no instructions as to how to use it properly. There seems to be only three options: AUTO, Manual and Exit!
If you only have the 2 HDD's already installed and running in a RAID0 array then there is nothing for the software to do and you need to add a third HDD of the same size (or larger) to add to the Array before it will do anything.