Jifty has several plugins in the distribution, though some of them are not installed by default. As of 0.71129, they are:
Basically I don't recommend to install these from this site until they would be fully integrated into the Jifty package and just installing Jifty would do all the tricks.
I'm reluctantly offering these plugins as separate packages from Jifty, but believe me, if you really want to use Jifty, check it out from its subversion repository at http://svn.jifty.org/svn/jifty.org/ and do "perl Makefile.PL && (n)make test && (n)make install" at the command prompt. Jifty is still under vigorous development. Cutting-edge version is always the right stuff (sometimes it even isn't the trunk version).