Airport Express - using 2 for itunes (not as extension).

I wanted to use 2 Airport Express units to wirelessly stream itunes to 2 different areas of my home. I cannot seem to make 2 units work. I will probably need to reset both and uninstall the software to start over. I am confused how to do this step by step as I have tried to use the directions on this forum for extending units and it does not seem to work.

I am running a PC with WPA security on my wireless network.

Airport IDs for the units are 00254B0896A9 and 0021E9F75A5B . Pretty sure both are N and are model # A1264

Any help would be great! trying to dial in the sounds for XMAS.

Thanks again!