John,

 

It's possible to use LoadRTF method to load RTF code into Cute Editor.

 

void Page_Load(object sender, System.EventArgs e)
{
     if (!IsPostBack)
     { 
           Editor1.LoadRTF("{\\rtf1\\ansi\\ansicpg1252\\deff0\\deflang1033{\\colortbl;\\red0\\green0\\blue0;}{\\fonttbl\n{\\f0\\fswiss\\fcharset1252 Times New Roman;}\n}{\\*\\generator CuteEditor 5.0;}}");
     }  
}

 

If you want to save RTF code into DB, you'd better to use a temp RTF file.