Dear mp5802,
You can retrieve these html code from database, and then load it to cuteeditor instead of "TextBox". If you assign the html code to $editor->Text, it will display the original text at "Normal" view and display the html code at "HTML" view in CuteEditor for PHP, the following is the usage of this property:
$editor->Text="<p><span style='color:#cc0000;'><b>This paragraph will be edited by the first instance...</b> </span></p>";
If you search "$editor->Text" in cuteeditor for php download package, you can find lots of related examples.
Thanks for asking