I can see that you have downloaded the RadEditorSPS_3_0_5.zip
which is designed to work with Sharepoint server 2003. Please, use the RadEditor for MOSS(WSS 3.0) - you can download it within your Client.net
account in the My Licenses --> My Free Trials --> All Individual Controls ... --> RadEditor --> Downloads
In RadEditor for MOSS(WSS 3.0
) the Wiki content and Blogs are covered by the ListEditor
you can review how to use RadEditor in List Items. Note that, when you activate the editor it will be available only for the current site. If you want, you can change the editor's Feature scope
so that, to be activated for a Site collection.
the Telerik team