So i installed Oqueue in Worldofwarcraft/interface/addons and when i open addons in game, oqueue doesn't appear. Any help?

odds are, you've installed it in the wrong folder. either too deep in the wow folder or in the wrong wow folder all together.

if you're on Windows, you might want to try icebox. icebox is an application i put together to help people download, unzip, and install their addons.

http://solidice.com/icebox