did you install Form Builder 2.0.1 before installing HTML Editor 3.0.1?Form builder needs to be installed before installing HTML Editor. try uninstalling both, then Uninstalling FB 2.0.1 followed by HTML Editor 3.0.1 then delete the Dreamweaver cache file:
common_installation_issues.pdf

Thanks Jason, as it now works ok by doing that.
But now I have the following error when I test my form:
Parse error: syntax error, unexpected '@' in C:\xampp\htdocs\***\****\add_an_offer.php on line 357
Code at lines 355 - 359 is;
<span>
<?php
// WebAssist iRite: Rich Text Editor for Dreamweaver
$WARichTextEditor_@@ObjectNumber@@ = CreateRichTextEditor ("IntroText", "../webassist/ckeditor/", "@@Width@@", "@@Height@@", "@@ToolbarSet@@", "@@CustomConfig@@", "");
?>
</span>


