Mozilla is not rendering the html docs for this project (just look at
http://svn.apache.org/repos/asf/incubator/stdcxx/trunk/doc/stdlibug/1-1.html
in Mozilla to see this). This is legitimate because the docs are being served from an SVN server, and all documents from such a server are supposed to have a mime-type of text/plain (i.e. instead of text/html).
This makes viewing the docs not particularly useful (that is, unless you're using MS Exploder, which apparently has a BUG that ignores the mime-type of a document if it looks like html).
However, there is a way to cure this problem and still serve the html docs from SVN (probably, anyway - don't know if it will actually work). That is to place the following "meta" tag in the "<head>" section of each of the html pages:
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"/>
Hopefully, SVN will not override this meta tag.