WordPress MU

Hey i'm using WordPress MU 2.8.4.

I need to edit the page that displays posts by month in a list. Is there a particular page to edit this?

link to the page: http://dimepiecemagazine.net/blog/2009/08/

just need to add a <br clear="all"> to it i think.

Thanks.

In your theme folder, same as if it were regular WordPress.

http://dimepiecemagazine.net/blog/wp-content/themes/dimepiece01/

look for archive.php