WotLK Can't install addons

[Witchicraft]

I joined Warmane for the first time today, and after playing for an hour I decided to dive in and get some addons. I did my research first and downloaded some that I like for the client version, did what I was supposed to do but no matter what I try the addons aren't working. I put them in the addon folder but they don't show up ingame, I don't even have an addon place. What am I doing wrong?

[OhieMitzen]

Go to your WoW/Interface/AddOns/ -folder, and check if the AddOns are packed within an extra folder. This is usually the issue when AddOns aren't showing up, despite being for the correct WoW version, and installed within the right folder.

E.g. the addon might be installed like this:
WoW/Interface/AddOns/DBM-WotLK-3.3.5/DBM-Core
WoW/Interface/AddOns/DBM-WotLK-3.3.5/DBM-TBC
WoW/Interface/AddOns/DBM-WotLK-3.3.5/DBM-GUI

When the addon should be installed like this:
WoW/Interface/AddOns/DBM-Core
WoW/Interface/AddOns/DBM-TBC
WoW/Interface/AddOns/DBM-GUI