Welcome (or welcome back?), wb12!
You have posted to an older thread and may not get replies. You can move your own post. Follow this thread on how to do that:
While that says from Community Feedback the method is the same from this space. If you have difficulties moving it, then we can contact TS for assistance moving it.
Thank you for your post!
You may have issues with Instant Web Publishing in FileMaker Pro 9 if you are outside of the System Requirements.
As beverly suggested, I'm also going to move this thread from the FileMaker Developer Challenge 2016 Place to the Discussions Space where you should receive more views and potentially more feedback on this topic!
If the users with which you want to share are all on the same LAN (Local Area Network), you can host the files with FileMaker Server if you can find a copy old enough to work with your files. If there are just a few such users, you might be able to host the solution using FileMaker Pro to host the files for the others. Both options assume that each user has a copy of FileMaker Pro on their computer to use to connect to the database. Given the extreme age of your version, that might not be possible.