Making a change in CMPS.
 

I have installed CMPS and it's working perfectly. It’s installed in the ROOT directory, not /Forums. I had to make several changes to make the links work.

Now it’s time to changeup my CMPS page. I have 60 or so users hitting my site daily so I want to minimize my downtime.

Before changing my CMPS page in the root directory, which files / directories do I need to backup? If I FUBAR it, can I easily restore it? How?

Thanks in advance.

I recommend that you do a full system backup aswell as a MySQL Database backup before doing anything.
Download all your skins (if possible) and then start working.

Once you've downloaded all backups, I also recommend you close your site while you work, then do the nessasary things to your site.

Hope this helps