connecting xbee to pc without xbee explorer

i have an arduino uno with xbee shield and two xbee s2 …i want to control my robot wirelessly using arduino …but the problem is that i do not have an xbee explorer to be able to connect one xbee to the pc …so is there any alternatives? and how can we achieve them?
can i use another arduino with another xbee shield to be able to do that for example?
the reason why i need an xbee connected to the pc is that i need my robot to be controlled via labview also.

thank you