[NTG-context] cweb-scr.pdf and m-cweb

Are the source files that were used to create cweb-scr.pdf on the http://www.pragma-ade.com site available for download? I am trying to get ConTeXt working on a cweaved TeX file and am getting an Undefined control sequence error. A working example (especially the source for the cweb-scr files) would be extremely useful. Thanks. (* jcl *) -- http://www.luciani.org