The + instead of the space is easy to explain. Many hosters can't (or at least don't want to) handle spaces in filenames, so they automatically replace them with some other sign, most often the % or + in my experience.
To avoid that you can use something like uppercase formating (FileName1) or underscores (File_Name_1) or simple put the files into an archive like 7z or winrar.
Thanks Norbert. The + doesn't concern me much, since it's only the file name not the mission name, and won't interfere with the order of the missions, but it was nice to know.
Anyway, you've given me an idea. Don't know if it will do anything, but I had to pack the files into a .rar file to get it up on Freespacemods. No word on that yet, but I can try uploading that .rar file here, attached to this post. So Damar, if you're out there, or anyone else, do you want to try this?
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