I know there have been a lot of threads about this but I actually have more information. Ok I install a custom map pack into the addon folder and when I go in-game and go to instant action or whatever it's called the maps aren't there! I only have 9 maps and patch v1.3 (the beta one) please help!
Oh wait, fixed it.

Off-topic : Glad to see you have worked out your Star Wars Battlefront-related "Technical Issue", jmazouri, but henceforth, I would like you to post all the Steps you followed in order to make your Copy of this LucasArts video-game working properly, as I guess it could help a lot of GameToast members who might face a similar problem in the near future...

Thanks in advance, and welcome on GameToast Message-Board !...

Ok, well I just realized I put them in the wrong installation folder, lol.

Off-topic : Thanks for having replied to me so fastly, jmazouri...
Henceforth, now we have both obtained satisfying answers to our respective questions, I guess this thread does not need to remain "active" anymore, as the theme dealt inside it is not classified as being a "major" "Technical Issue"...