I'm on Win10 (and hate it). My textures are stored in: C:\Users\kapow\AppData\Roaming\eTeks\Sweet Home 3D\textures

Two questions:
1) Do the newer zip files contain all of the older textures as well, or do I need to download all zip files to get them all? I grabbed all of them.

2) If I doubleclick on the sh3t file, I have to choose an application to open it and then it still doesn't install the textures.
If I "Import textures library", I get these two files in my textures folder: eTeksScopia.sh3t and Textures-Contributions-1.0.1.sh3t. I should now have almost 400 textures, but I have a little over 100.

What am I doing wrong?