[Lynne]

I'd guess you can just do a str_replace for those words. I just posted this in another thread:
hook location - postbit_display_complete

PHP Code:

$word = array(
 'word 1',
'word 2',
);

$link = array(
'<span title="what you want to say">word 1</span>',
'<span title="what you want to say">word 2</span>',
);

$this->post['message'] = str_replace($word, $link, $this->post['message']); 


(I use str_ireplace, but that's your choice - google the differences.) You can change the color in the span tag also, whatever you want.