72 Class Theme Footer

Hello: How do I remove:

1.) the leave a reply text "XHTML: You can use these tags: <abbr title=""> <acronym title=""> <b>

<cite> ` <del datetime=""> <em> <i> <q cite=""> <strike> <strong>"<br />
2.) categories, archives and meta content<br />
3.) About text</p>
<p>in the footer. I would like to replace this with different content (testimonials)</strong></em>`