ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO/ipp970702.doc  and
ftp://ftp.pwg.org/pub/pwg/ipp/new_PRO/ipp970702.ps
It is only 14 pages. 
This document has the changes that we agreed to at last week's
meeting in Nashua.  Note that the protocol is now easy to extend
to work in a raw TCP/IP environment (Appendix A).
Please note that this is a first draft.  I may have forgotten a few
things, but my intention was to repeat nothing that is in any of the
referenced documents.
Please read this document and send comments to ipp via email so I 
can get out a new version next week.  I would like to forward that
revised version to the IETF as a first draft.
Bob Herriot