Tile based game in opengl

Greetings!

I am making a tile based game using C++ and opegl. The tile part is fairly easy... But I cannot find any good resources on doing 2D animation in OpenGL. Nor collison detection in OpenGL for a 2D program. Can somone please give me a link to a tutorial? I have tried looking, but have had no luck. I am NOT a programming or OpenGL newbie, I just haven't tried making a 2D game. I started with 3D stuff, and it actually seems to be easier for me, but I am making a traditional rpg on 2D, so I can't do 3D Thanks! ^_^

Check out NeHe's Tutorials http://nehe.gamedev.net
and
http://www.gametutorials.com

- Sean