The project svn repositories are available at
https://www.osadl.org/projects/svn/fieldbus-framework/trunks/fapia-trunk/
and
https://www.osadl.org/projects/svn/fieldbus-framework/trunks/fddi-trunk/
User name anon, password anon
To check out the files type
FBFW=https://www.osadl.org/projects/svn/fieldbus-framework/trunks
followed by
svn co $FBFW/fapia-trunk/
and
svn co $FBFW/fddi-trunk/