>>My first question: Do I have to install first the CuteLiveSupport and then after NukeLiveSupport4? I suppose the answer is yes.
No, you only need to install NukeLiveSupport4. This project has been tightly integrated with DNN.
>>If so, when you say to modify the web.config (below), you mean the web.config in dotnetnuke or in CuteLiveSupport website?
Web.config of DNN. There is no Cute Live Support web site here.
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx