This CSS emulates gfaqs9 classic, which is what most of the remaining gfaqs9 users use, as far as I'm aware. It does a great job of replicating it, and will hopefully be appreciated by many users. We all know how horrible V10 is, and no one should have to suffer that.
http://rapidshare.com/files/156117464/ClassicFAQs.css.html
To use it, you must follow pretty specific instructions.
Make absolutely sure you're using the latest nightly GameFOX release. Get it from here: http://beyondboredom.net/projects/gamefox/ (GameFOX is required to make this CSS work, so you might as well use it to apply the CSS instead of userContent.css)
Once you have that installed, go to Tools -> GameFOX -> Main -> Page, and check "Hide topic status column."
Then, still in the GameFOX window, go to Style, and check "Disable main GameFAQs stylesheets."
Still in Style, uncheck everything else. No CSS should be checked.
Browse for the CSS I linked to above, and import it. Doing this should automatically check it, but make sure it's checked anyway. (This should be the only CSS checked. Normally, you'd also have to check "Status icons (classic)", but that code has been written in the CSS I uploaded already)
Click OK, and that's it. It should now resemble gfaqs9 classic, even down to the topic icon positions.
You can't just go to View -> Page Style -> No Style instead of checking "Disable main GameFAQs stylesheets," as that prevents the topic icons from showing up.
Now, when you're using this CSS, there may be a bit of transitional lag while loading a new page. To get around this, download AdBlock Plus, and add a filter for "http://www.gamefaqs.com/css/*.css". This will get rid of any unwanted transitional lag.
Also, this would not have been possible without Rhoaddhogg's classic CSS and the GameFOX developers (Karamthulhu, RockMFR5 and ZeroAnt), so much of the credit for this goes to them. The actual modifying of Rhoaddhogg's CSS was done by me and sleepmode.
Enjoy. If you have any questions, ask here and we'll try to answer them. Oh, and this CSS won't be getting regular updates like 9for10 does.