The layout is determined by the stylesheet comments.css. You can alter the styles so the comments page reflects the look and feel of your website. This tutorial is aimed at people who understand stylesheets. If you don't know stylesheets I can recommend webmonkey's stylesheet tutorial as a good starting point
The comments page consists of four boxes and some formatted paragraphs. This image gives you an overview how it is set-up:
#content
controlles the outer box in which all other boxes reside.
#title
contains the title of the comments page as determined by TITLEPAGE in constants.asp
#comments
contains the actual comments.
#newcomments
contains the form to add a new comment
.message
if a new comments is added a message is displayed as determined by THANKYOU in constants.asp
.commenttext
The paragraph with the body of the commenttext
.smaller
The paragraph with information about the comment author and date of posting.