I have tried the two installations alternatives:
The "using a template" one returns a "non git repository" error.
And the "manually" alternative, give me the same error already reported by Shree in the Google discussion group.
http://groups.google.com/group/adva-cms/browse_thread/thread/42361bc4373a5e52
Apparently the installation procedure is not properly tested...
Unfortunately I'm a newbie in Rails, and don't know how to help.
MarcRic