The latest version is v6.6, download link is http://cutesoft.net/downloads/folders/cute-editor-php/entry54374.aspx , you can download latest version and check whether you can reproduce this issue in latest version.  The online demo link is http://phphtmledit.com/EnableAll.php, you can also test it there.
We can locate your order by your buyer email. Please send buyer email to eric@cutesoft.net.

Regards,
Eric