Bazaar is an old system for managing code.
SourceForge only supports readonly access to BZR now.
You can download the complete repository in .zip format: https://sourceforge.net/code-snapshots/bzr/m/my/myjit.zip
Once you have downloaded the file, you can unzip it and run: bzr export /path/to/bzr-repo /path/to/new-dir
If you are looking to convert your Bazaar repo to Git follow these steps:
mkdir git-repo
cd git-repo
git-repo $ git init
git-repo $ bzr fast-export --plain /path/to/bzr-repo | git fast-import
git-repo $ git checkout master