How do I use TTF Titles Plugin on the widget titles?

Hi!
I found a great plugin called TTF Titles which allows you to use unconventionnal fonts for the text of the blog. It creates a png or a gif file for each word and replaces the word with this file. To use it, I am supposed to change the_text or the_title in the code by the_ttftext or the_ttftitle. I would like to do it for the titles of the wigets in my sidebar, but I don't know where to make the changes in the code. Could someone explain to me the changes in the code that are necessary? Thank you very much. If you need more information on the plugin: http://www.hostscope.com/wordpress-p...dpress-plugin/