The PyGTK releases here are now organised according to the version of
GTK+ they are designed to work with.
  v0.99/  - versions of pygtk for gtk+ < 1.0
  v1.0/   - versions of pygtk for gtk+ 1.0.x
  v1.2/   - versions of pygtk for gtk+ 1.2.x
  v2.0/   - versions of pygtk for gtk+ 2.0.x
  v2.2/   - versions of pygtk for gtk+ 2.2.x
  v2.4/   - versions of pygtk for gtk+ 2.4.x