How to set up my purchased copy of Minecraft on my account?

I set up my Minecraft account today and during my set up right after I pressed the button to redeem the game and download it they shut down for maintenance. Now every single time I try to install a skin from Minecraftskins.com it has an error and says that I don't have the game! What do I do?!

Did you make a majong account? If not go here. https://minecraft.net/.../minecraft

Are you able to sign in to minecraft game that you downloaded? Can you go to other servers in multiplay?

Please give more information.