I recently rooted my Sprint HTC hero, without knowing the usefulness of google talk, i deleted it. I also made the mistake of hard resetting my phone losing my file mngr apps! If any solution to this issue plz let me know the steps to revert this. At the moment I'm on 2.1 and no longer rooted. Please help! I can't figure out how to install the apk without being rooted. Thanks 
