This page
http://www.codeblocks.org/nightly/ is inaccurate.
The project file names are wrong. The -NewBuild needs to be removed.
I tried to find the file in my SVN checkout of the website, but I couldn't. Under /nightly there was a .php file that had "Under construction" in it..... :? I was going to submit a patch, but like I said I must have been looking in the wrong place or something.