Urgent Clarification Required Xbee

I have a maxstream Xbee module(jus got it!) now it has a 5v input and has a 1117s regulator ic and i assume its safe to give it 5v from the arduino… but this http://mrtof.danslchamp.org/AXIC is a bit scary as it warns not to connect xbee directly to arduino. perhaps its only for the diy version i suppose and would appreciate if someone can clear this off… Last thing i want is a burnt zigbee module!