I have an update to this. I hadn't named the script autoexec when I was trying it before. I just made a script called textures and was trying to run it. When I renamed it and manually ran it, the textures seemed to show up fine in the window. but, it could be because I had since closed wow down, or restarted, etc. I don't think it worked just because I renamed the file?
However, the texture is not being placed on my window when I make a change to it. It shows it in the preview file perfectly. So I save, close the editor windows, and nothing happens to my main window even after reloading my UI, logging out/back in. I haven't played with it too much, didn't have the time last night. Just thought I'd mention in case someone knew off the top of their heads
Sorry to be asking so many questions! I've learned *a lot* through trial and error, and things are getting easier, but I'm spending a fair amount of my play time doing so. I appreciate the help!