Va Tech has been doing a good job of clearing his name from their directory.
http://www.googlesyndicatedsearch.com/u/virginiatech?q=Cho+Seung-Hui&btnG=Search&hl=en&ie=ISO-8859-1&domains=vt.edu
try enter any dead links into the way back machine.
http://web.archive.org/web/*/http://www.mag-gen.com