Well, this has nothing to do with Compojoom comments system at all.
However, I also use the Schlu.net system, although I have never tried this QuickFAQ component.
Take a look through FTP or whatever access system you have at the file called en-GB.com_quickfaq.ini
That is your English language file, and you can open it up in some editor, to change whatever you want.
I tend to use Dreamweaver because it just shows stuff easier for editing. But, any other editor will work, even Notepad which is actually amazing!
Remember, this is just a language file, and is probably positioned at: YourSITE/language/en-gb/en-GB.com_quickfaq.ini