Phil,
Let's try the following steps:
1. Recopy the CuteEditor.dll to your server.
2. Recopy all the CuteEditor client files to your server.
3. Pick an example page and copy it to your server.
If the problem still exists, please provide a URL.
I also need the temp FTP access to check your site. Please send it through email or PM.
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