A “Useful Links” section at the top of the forum is your friend. If your forum doesn’t support creating a links section directly, just create a new forum category at the top with “subforums” that actually just link to various topics of interest - that’s what I did with the Flak Forums, as that’s just running a simple PhpBB forum, and it’s worked out great.

Edit: Yeah, a link to FLMM in your mod download section never hurt either. That way someone can just be pointed to that topic and everything they need will be right there.