You have to mention in your First Post that the link to the Play Store is only available for users that have 'bought' the app before.
Without it the link is not working!
No man the second link. Its to a dl page where you can install it with out the play store
http://apicdn.viglink.com/api/click...bird-13-apk.html?m=1&loc=http://xdaforums.com
dont forget the thanks button if I helped out!!