[boost] Missing files?

Hi, I'm trying to build the examples of the Channel event framework ( channel.sourceforge.net). Apparently, the Boost archives at sourceforge (.zip, .tar.gz and .tar.bz2 files) are missing several necessary files, like serialization/array.hpp. When I do a CVS checkout of Boost however, those files are included. Why is this? Are they still part of Boost? Thanks in advance, Jan