I am getting ready to update the tracker module and would like some beta tester to test it out when it is complete. The module will be an add-on module, so no Zen Cart core files will be alter or overwritten.
If you are interested in being a tester or help in developing the module, please PM me or submit a post here.

Some of the features in the update version are:
Batch add tracking id.
Ability to edit tracking id.
Customize email message.
No limit on maximum carriers.
Edit order details.
Easy linkage to other modules.
* Plus some implementation will be added from user's suggestions.

This thread will be also be use as a developers thread. So if you have any suggestions that you would like added, please your comments here. The module is still in the early stages of development. I will post the progress here and contact the beta testers when it is ready.