All files are self extracing archives.
Download latest PC-version: everything in one file (23 Mb)
Download old PC-version (10 Mb)
The old versions are OK (and smaller), but lacks the binding between Help and Exercises. Instead, you have to use the index page to select appropriate exercise/help text.
There is no difference between "latest PC-version" and its parts. If you download the parts, please put all of them into a folder named Gramte after extracting them. They are only provided as a service to those who have problems downloading a single large file.