Tried that and it then complains saying it cant find the components from / as follows:-

could not find component for path '/lib/header.mas'

Stack:
  [/usr/local/lib/perl5/site_perl/5.8.0/Exception/Class.pm:153]
  [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/Request.pm:967]
  [/export/home/set/scripts/perl/site_build/base_dir/htdocs/reviews/au
+tohandler:9]

Stack:
  [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/Request.pm:281]
  [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/Request.pm:385]
  [/usr/local/lib/perl5/site_perl/5.8.0/HTML/Mason/Request.pm:351]
[download]

I'm assuming that this just doesn't work out of the box as a good example.