Caveat: I've never used an 0204. But, if your problem is that you only see mono ins in your DAW instead of a stereo input, the only way I can think of to describe the problem is that maybe you are only able to use mono inputs, but you have two of them. If so, just send the left channel through one input and into one track and send the right channel into another input and to another track. Pan them wide and mix down.