the haptar and htr extension files are the same, if you rename the haptar to htr you can put those in the HAL directory and use them with HAL. If you want to play with the Haptek stuff, just double click on the htr or haptar files then you can drag different "skins" to it to change it.
If you create a text file named HapLogCtrl.txt and put it in your root directory C: with a line in the file
debugger=y
and restart HAL it will start a Haptek Console and you can drag files to it. Text files will read, jpg files will change the skin, Haptek formatted ogg files will lipsynch, etc.
If you go to HAPTEK.COM you can download the Haptek guide which has a lot of detail about how to program scripts for animation if you want to get into that sort of thing, it has examples also. That sort of thing can be applied to HAL also.