would like to upgrade groff without upgrading to karmic

I would like to use a newer version of Groff :-)
I don't want to upgrade to Karmic yet. I take it that if I did, Groff would be upgraded to 1.20.1?

The version of Ubuntu is Jaunty. The computer is amd64.
From `apt-cache show groff', it's Version: 1.18.1.1-22build1

I tried compiling Groff 1.20.1 from source ( ftp://ftp.gnu.org/gnu/groff/ ).
The compilation seems to have gone fine. It seems to build...
The `compiled-from-source' Groff seems to work, but I have only tried simple stuff!

Should I stick to what has been built from source, or should I try something else?

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This is more from `apt-cache show groff'
Architecture: amd64
Version: 1.18.1.1-22build1
Replaces: groff-base (<< 1.17.2-9), groff-x11 (<< 1.18-1), jgroff (<< 1.17-1)
Provides: groff-x11, jgroff
Depends: groff-base (= 1.18.1.1-22build1), libc6 (>= 2.7), libgcc1 (>= 1:4.1.1), libice6 (>= 1:1.0.0), libsm6, libstdc++6 (>= 4.1.1), libx11-6, libxaw7, libxext6, libxmu6, libxpm4, libxt6
Recommends: ghostscript, imagemagick, libpaper1, netpbm, psutils
Conflicts: groff-x11 (<< 1.18-1), jgroff (<< 1.17-1)
Filename: pool/main/g/groff/groff_1.18.1.1-22build1_amd64.deb