$book = '..'?>include "$book/mh.php"; includeHeader('e-showpr.html', '../xmh/e-xmhpri.html'); ?>
The Section Partial Messages gives an overview of this script. Here is the storeparts script (you might want to open it in a separate browser window). To install it, see the Section Programs in This Book's Archive.
The script is simple. It extracts the Content-type: header field from the message and gets the id= information from the field. Then it uses pick to search for messages matching that id. pick stores the messages in a sequence named temp. You might want to customize storeparts to use a different sequence name -- or to accept a -sequence option on the command line (and, if you want to be really fancy, have it check your MH profile too). includeFooter('$Date: 2006-05-31 15:13:43 -0700 (Wed, 31 May 2006) $', 'OReilly: 1991, 1992, 1995; Jerry: 1996, 1997, 1999, 2000, 2002, 2004'); ?>