However, here's a simpler approach that should work.First, what's the problem? Well, not all non AIO installations will be the same. Some have Texture folders and some don't. No need to go into the reasons. The link below will download a revised version of the AutoGen..... BUT BUT BUT.......will everyone with an AIO installation ignore it please.
When you unzip it you'll see that it contains just three folders, All Vol 1, All Vol 2 and All Vol 3. Each of these contains a single TEXTURE folder. Open All Vol 1. Now, go to your existing Horizon VOL 1 and open it. If I remember correctly it will contain three folders for Area 1 Area2 and Area 3. Open each in turn, then open its 2.4M PHOTO folder. Does one of them contain a TEXTURE folder? If it does, then copy the contents of the downloaded FARMS_FS9_PLUS_V2.zip's All Vol 1, TEXTURE folder into the one you've found. If you haven't found one, then simply put the whole, unopened TEXTURE folder from All Vol 1, into your Vol 1, Area 1, 2.4M PHOTO, FOLDER.
Follow exactly the same approach with VOL 2 and VOL 3. That should do it and seems a low risk option.
If anyone's unclear about the installation just shout out. The download link is http://www.homepages.mcb.net/gwinsk/FARMS_FS9_PLUS_V2.zip Gerry Winskill