[NTG-context] generating PDF from XML

Hi there, http://meeting.contextgarden.net/2011/talks/day2_03_thomas_xml-tutorial/ contains some files that allow generating PDF from XML source files. context --purgeall --environment=mysecondstyle.tex myexample.xml with ConTeXt stable from TL2011 should do the work, shouldn't it? Well... I get no error, but I don't get the PDF output. The same happens with the examples at http://wiki.contextgarden.net/TEI_xml. What am I doing wrong? Thanks for your help, Pablo -- http://www.ousia.tk