This is a free debate that can be downloaded from the theopologetics podcast:

http://www.aomin.org/aoblog/index.php?itemid=4874

the links to the podcast episodes from the aomin blog have been updated, here are the links from theopologetics:

http://www.theopologetics.com/2011/11/26/episode-67-firstborn-of-creation/

http://www.theopologetics.com/2011/11/27/episode-68-the-great-i-am/