To use the dvipipetops filter:
- create an /etc/cups/local.convs file and add the contents of
  dvipipetops.convs to it
- add the contents of dvipipetops.types to /etc/cups/mime.types
- uncompress dvipipetops, give it exec permissions and put it in
  /usr/lib/cups/filter
- restart cups with /etc/init.d/cupsys restart