Copy the folders bin and Providers to your DotNetNuke Root folder
Add the following line to your web.config (in the html editor provider area).
U can also add other CK Editor Settings like e.g: ck_uiColor (with the prefix ck_)
Make sure you set the defaultProvider attribute to CKHtmlEditorProvider.
Installation for DotNetNuke 5/6/7
Install Zip File CKHtmlEditorProvider_01.xx.xx_Install_DNN53.zipONLY For DotNetNuke 05.03.00 (or higher), as new Extension (Host->Extensions->Install Extension Wizard)
Install Zip File CKHtmlEditorProvider_01.xx.xx_Install_DNN6.zipONLY For DotNetNuke 06.00.00 (or higher), as new Extension (Host->Extensions->Install Extension Wizard)
Install Zip File CKHtmlEditorProvider_01.xx.xx_Install_DNN7.zipONLY For DotNetNuke 06.00.00 (or higher), as new Extension (Host->Extensions->Install Extension Wizard)