well ... to set this up ... you need two analog outputs:
1) for the raw audio signal -> Virus Inputs
2) for the atomized audio signal -> Mixer / Amplifier / Monitors
and ... if you don't have two outputs:
just burn the wave to cd and connect a cdj / cd-player to the analog inputs of the Virus.
most quick and dirty solution
PS: check out the Atomizer Manual.pdf