Works great except when I began it was stripping the html and punctuation in such a way that...
"The monkey was Silly.Head to the beach."
Created a cloud with the word "sillyhead", the link of which returned a list of zero results because the search does parse the text properly. Also if you have Rates turned on it would show "sillyhead(1)"
If you have the same problem edit the helper.php file and change the line...
$input_text = preg_replace('|["!()$%?&^#:;,.*=]|i', '', $input_text);
to
$input_text = preg_replace('|["!()$%?&^#:;,*=]|i', '', $input_text);
AND add a line
$input_text = str_replace('.', ' ', $input_text);
After that the module works perfectly for me (Win 2003 IIS6)