In my local server, created a new website and put all the content that downloaded, when running it now generates an error of javascript.
syntax error
var cookie=name+"="+escape(value)+"; path=/;";"n

And click on the web link IM it generates another error:
 
Chat_OpenMessenger is not defined
 
These errors were generated by its application. Running on my local server without any connection with my system
 
Follow several of the tutorials that are here on the site, but none satisfied.

Maybe you could explain better how to install. It could make it work once itegrado with my DB, but when put in the server online it does not work.