I just tried your
DAEMON_OPTIONS(`Port=smtp,Name=MTA, InputMailFilters=headercheck-milter;spfmilter')dnl
and changing the INPUT_MAIL_FILTER to INPUT_FILTER, it does not work. Likely, it's not compiled with _FFR_MILTER_PERDAEMON
If you didn't build it yourself (i.e. it's one that came with Fedora) then it won't have it.
Where Can I find it? aarrgghhh,, wish I have I-net access now!
Probably the easiest option for you is to grab the sendmail-8.13.1 SRPM from fedora/development/SRPMS on your favourite mirror and build it on your machine:
rpmbuild --rebuild sendmail-8.13.1-2.src.rpm
That'll give you 8.13.1 built for FC2.
Paul.