Kannel Architecture Documents not available from site

Hi ,    
 
    I am very much new to this Kannel.I am not able to access the
documents on the kannel site. There seems to be some error with the
page. Can anyone share the documents with me or guide me to a proper
location where i can access them. I want to get into the development, so
documents are very much needed for me.
    Any guidance in this regard would be of great help.Hoping to get a
positive response.
 
Thanks in advance,
Anisha