Here's my support thread for the broken E-Sky Tandem from XHeli.
You'll need to have an account to see the pictures, but I'm quite sad with the broken state of this heli. No word yet on what they'll do for me, but I have at least received a response from the guy on the forums who typically responds to these things. I also contacted someone on the livechat today who have me an email address to contact.
We'll see...here's hoping!
EDIT : I've been sent the UPS label and the broken heli is on its way back to XHeli. They promised me a working model in exchange.