Did you look closely? Your body and html tags are closed before the calendar gets added. Look at the output from Page.ss. By the time it gets to Calendar.ss, the html element has been closed out. Where's your $Layout variable?
Thats the issue, its missing the $Layout. I had somehow missed that.
i have a same problem with event-calendar module,
only calendar is missing, rest of the other things r proper.
(image of my output is attached below)
after trying "?showtemplate=1?" it shows calendar properly.
pls help me in debugging this issue....