EDIT
It can take up to 3 days for your application to be processed. In the meantime Microsoft provide a free 90 day license key and immediate download of Visual Studio Professional to everyone. Use the 90 day license key described [here until your subscription is processed.
http://www.visualmicro.com/pics/MsdnSub … wnload.png
After your account is setup, you can also sign in to msdn using the same Microsoft id. http://www.msdn.com. This is a quick way of accessing your Microsoft downloads on future occasions.
To be a good person you should follow the rules of websitespark or in theory microsoft can ask you to stop using the products.](Visual Studio for free for Arduino Development)