OK, Install the Bryce 7.1. 0.o9.exe first, and then follow it up by installing the content. The file that is labelled “bryce lightnining you will only need if you want to set up a “render fram” that is to link more than one PC togehter in a network for rendering purposes.
You will find the content files contain all sorts of things, inclucing scene files
I quote Horo
You can install Bryce where ever you want. The proposition of an installation path is there for convenience. Bryce even runs on an USB stick.
The content installers are not actually installers. All they do is unpack the files with the folder structure on a drive/path of your choice. I recommend to create a temporary folder “MyTempFolder” or whatever name you care to give it and install the content into that folder. Look at the files in the folders created. There are tutorials, sample scenes and such. You can copy them wherever you wish. I have a sub-folder “Content” under the Bryce main folder and have things there so I find the.
There are presets in some of the content packages. These are different. You must copy them into a particular folder. In the main Bryce folder, ther is a sub-folder named “Presets”. Under this folder, there are more folders for materials, skies, textures, objects, etc. Again, there are subfolders and you can add more with names of your choice. Look at the files in those folders and you know which file types belong into which folder.
The picture (if it shows) should give you an idea (here for obp objects).