please accept my apology for abandoning this addon and not answering your support requests.
I don't play wow anymore and thus any request will remain unaswered.
When upgrading from 0.1.2 or earlier do /at switch and /at enable and make sure the options are set correct!
autotrack is an addon for hunters with the talent Improved Tracking. It will try to set your tracking skill to fit your current target.
It should work with any Locale, as long as the creature type to track is a substring of the name of the tracking skill (i.e. "Beast" in "Track Beasts"). As that doesn't work for all locales, there is support for localization since version 0.1.1. However, currently it's only localized for English language.
It can be configured with slash commands. With /autotrack or /at you get an overview of the available commands. If you don't want autotrack to change your tracking every time you target something, do /autotrack switch to disable (or enable) that behaviour.
You can select tracking skills to be automatically set upon entering and leaving of an instance. To do that, first do a /autotrack list, to get a list of available tracking skills and their IDs. Then, set the tracking skills with e.g. /autotrack wt 9 and /autotrack dt 1. To set a tracking skill when leaving combat, you can use /autotrack lct X (with X being the ID of the desired tracking skill).