Used svn2git instead with the following steps:
1. Create an authors.txt to map svn to git usernames (check https://github.com/nirvdrum/svn2git for instructions)
2. Run svn2git
svn2git -v http://svn.example.com/path/to/repo --username dlow --trunk / --nobranches --notags --authors authors.txt
3. Create repo on Bitbucket
4. Sync your repo
git remote add origin https://user@bitbucket.org/user/your_git_repo.git
git push -u origin --all
This should preserve all your previous commits from svn over to BitBucket (or Git in general).
If you use Eclipse as your IDE, the following video is useful for setting up EGit and going through some basics of Git.