I have unzipped the WP Platinum 1.0 archive.
I FTP the entire contents up to my web server.
I attempt to run the wp-admin/ugrade.php script and I get an error about ABSPATH or something. My apologies for such a crappy explanation of the error, but I neglected to write down the error because I thought I had screwed up my entire blog. I deleted everything, and restored my original files, and I am back at square one.