Trouble Installing Raid frames

I am looking for a addon that works. I have been trying to install healbot and many other addons without success from either moving them into interface/addons up to extracting files into interface/addons with no luck. All i want is to see all 15 players names in BG's etc. instead of 4 other party members. Someone help! WoTLK 3.3.5

Can you provide links from where you downloaded them? You may be installing addons for wrath classic that don't work for 3.3.5

Otherwise your folders are wrong. Can you show screenshot of your addons folder?