Version 2 of TallyJ can be installed for local use!
As of September 2014, the installation of TallyJ version 2 is supported. Instructions can be found here, but you will need to contact Glen Little for access to the installation files. Once it is installed, you will have a local system identical to the web site at https://www.tallyj.com and all tellers can access your copy of TallyJ from their browsers.