My ipad continues to do this, i try to download somthing like it says get i press it i put in my apple ID and then it loads for a seccond and then it says get again.
You could force close the App Store app and see if it helps. If not, try restarting your iPhone. Press and hold both the power and home buttons until the Apple loco appears, then release both buttons and wait for the iPad to restart.
Have you tried going to Settings>General>Reset>Reset Network Settings to see if that solves the problem of the download aborting before it gets started? If that doesn't work you could try my next suggestion.
Have you tried downloading the app through iTunes on your computer, then syncing your iPad to get it onto your iPad?