Addons not Working.

Hi, I downloaded these two addons(http://www.garrysmod.org/downloads/?a=view&id=102990 and http://www.garrysmod.org/downloads/?a=view&id=42077), I unzipped them and copied them to the addons folder, but they are not working, I searched for them in the browse tab along the other addons and they are not there, It happened to me with other addons.

You need to create info file to get them working.