hi Johnnyboy,
you need to download these:
[ArmA] Pack Objets V1.0 (3,2 mb/ objects addon)
[ArmA] Pack Mer V1.0 (698 kb/ sea addon)
[ArmA] Pack Armes V1.0 (53,5 mb/ weapons addon)
[ArmA] Pack Infanterie V1.0 (42,4 mb/ infantry addon)
[ArmA] Fix Sortie #1 (12,3 mb/ patch: uncompress and replace the pbo files in the @ofrp\Addons folder)
click on "miroir" or "TELECHARGER" to download them.
the packs are .exe files, only execute them and it should create the @ofrp folder in the arma folder (click 'suivant', 'suivant' then check 'je suis d'accord ...' , browse to the arma folder etc...)
The fix Addon is a compressed file; uncompress the pbo in @ofrp\addons folder, click yes when asked for replacement.
Sorry, i should have told you this before.