How to install bzrtools:
All the tools are plugins, so you can install them in your plugins directory.
IT IS IMPORTANT TO MOVE/COPY THE BZRTOOLS DIRECTORY, NOT ITS CONTENTS.

$ mv ~/bzrtools ~/.bazaar/plugins/
You may have to create the plugins directory first.

Alternatively, you can install them at the system-wide plugin location:
$ sudo python2.4 setup.py install

You can test whether they are successfully installed by doing 
"bzr clean-tree -h"

Optional Dependencies:
rsync          - used by rspush
diff           - used by shelve and unshelve
patch          - used by shelve, unshelve and patch
baz and pybaz  - used by baz-import
testresources  - used by the baz-import test suite

Getting 
If you want to use baz-import, stick a pybaz symlink in the bzrtools tree:
$ baz register-archive http://ddaa.net/arch/2004
$ baz get ddaa@ddaa.net--2004/pybaz--devo--0 pybaz
$ cd ~/bzrbzrtools/external
$ ln -s ../pybaz/pybaz

If you want to test your install:
/path/to/bzrtools/test.py [/path/to/bzr]

To perform a complete baz-import test, you'll also need testresources:
$ cd ~/bzrtools/external
$ bzr get http://www.robertcollins.net/unittest/testresources/
