[Haskell-beginners] 'cabal install hdirect' can't find hdirect

[Larry Evans]

hdirect is here:

http://hackage.haskell.org/package/hdirect

however, as shown by the following terminal session,
cabal can't find it.  What should I do to insteall hdirect?

~/download/haskell/libs $ cabal -V
cabal-install version 0.6.0
using version 1.6.0.1 of the Cabal library
~/download/haskell/libs $ uname -a
Linux evansl-desktop 2.6.24-24-generic #1 SMP Fri Sep 18 16:16:18 UTC 
2009 x86_64 GNU/Linux
~/download/haskell/libs $ cabal install happy --dry-run
Resolving dependencies...
In order, the following would be installed (use -v for more details):
mtl-1.1.0.2
happy-1.18.1
~/download/haskell/libs $ cabal install hdirect --dry-run
cabal: There is no package named hdirect
~/download/haskell/libs $