OK, so we players are running into issues with the way the "full version" of the game is packaged.
1. The "full" version apparently has all of the chapters and video packs, but it does not register them as being installed. When you try to select a chapter (or video from a chapter), it tells you to download it. Are those parts present in the "full" version simply placeholders?
2. The "full" version contains both Max's Life Pt. 3 and the "full" version (which contains Max's Life Pts. 1, 2, and 3). In other words, Part 3 is apparently contained twice in the RAR file (of which there are three parts).
3. Due to the fact that the "full" version is apparently only Pt. 3 (twice), the game still requires you to download the old video packs and chapters, even though they are already contained in the game folder. (See #1, above.) Either the game is not recognizing that the necessary files are present, or those files are placeholders and the "real" ones are missing.
All of the above begs the question, "How do we get the game to acknowledge and use the 'old files' once we have them downloaded and installed in the game folder?"
EDIT: Well, it seems that the "solution" for the old video files is to download the requested files and copy them over the top of those already contained in the game folder. No word, yet, on how to deal with the "missing" chapters.