kxml - parsing AWS API xml respond

[holo via Digitalmars-d-learn]

Sorry i was trying to use that XPaths to take out instanceId and 
laounchTime but i always get an empty respond.

//instanceId/launchTime" - empty
//instanceId/*           - empty too
//instanceId.launchTime  - empty too

How to take instance id and variable which im interest in or 
few/all for instanceId?