You need the kernel sources (30-40) MB from
www.kernel.org or the site you mentioned (so I assume you already have it), and you need to have a working linux system, with development packages installed. If the command "gcc" returns "command not found" or something like that, you know that you don't have them installed.
BTW, check this guide for a nice step by step procedure
http://www.techenclave.com/forums/sh...ad.php?p=47185