Piping news to a program in inn

[rborland <rborland healthnet zw>]

I'm using Red Hat 7.2, inn-2.3.2-5 and inews-2.3.2-5.

I can't get inn to pipe news to a program.  Following the sample code I have
the following test newsfeeds file:

  ME:*::
  capture:*:Tp,Wf:/usr/local/bin/capture %s

capture is a test script to cat the file passed in the %s argument.  I post a
message to a test newsgroup using Pine.  The message is correctly posted to the
newsgroup and appears in the news spool directory.  capture shows that %s passes
file names like:

  @050000000007000000140000000000000000@
        
but the file can't be found.  I can't see any options for obtaining the
absolute path.  I've tried prefixing %s with the news spool directory
/var/spool/news, the news temporary directory /var/lib/news/tmp and so forth
without success.

Earlier versions of inn passed the absolute path to the article file itself in
%s, like /var/spool/news/articles/testlocal/123, and this worked very well.

I must be missing something obvious here.

Regards,
Rob