MEGA+EthernetShield(V5)+XbeeShield

I want to use EthernetShield(V5) and XbeeShield on Mega.
Has anybody stacked these and used them at the same time?

#I was able to use old EthernetShield and XbeeShield.

I saw the XBee Shield's schematic diagram.
XBee Shiled uses 5V, RESET, and GND.

Do I only have to connect it with those of MEGA or Ethernet Shield?
Isn't there problem?