You downloaded wrong runtime library. Please download the correct library from the following link.
http://prdownload.berlios.de/codeblocks/wxmsw26u_gcc_cb_wx2.6.3p2.7z
This will solve your problem.
When I first landed to this site, I also thought the project is dead. RC2 was too old. But after I found the Nightly link, I download the latest builds almost regularly. I also feel there should be a RC3 release. This would help newbies in selecting an appropriate version to download. Anyway there are discussions going on in another thread, you may put your point there. :D
Regards,
Biplab Kumar Modak