I did some additional testing and:

 

1. On the back-office (Administration) I am getting the "Error while parsing the Languages fileLanguages/en-US.xml". I suspect this is a problem in building the path to the files, so I have reviewed your code in include_CuteEditor.php and changed the FixURL function to return "http://www.publicitor.net/".$path; 

 

This stopped the "Error while parsing" errors... but now the page comes with Joomla 404 Error Component not Found where the editor should be.

 

2. On the front office I allways get the "failed to load impl time" when trying to submit a new article. See the "Article Submission" menu option: this a standard Joomla!1.5 functionality to submit content.

 

3. On the front office Cute Editor seems to work fine if editing existing content.

 

Seems to me that the file paths are not correct throughtout the code. I hope this info can help you figure out what is wrong.