Currently Being ModeratedFeb 19, 2013 3:09 PM (in response to Loriefromoh)
There are a few ways to do it, all quite simple.
I prefer to;
1. Open the App Store on the device
2. Go to "purchased" (even free downloads are purchased, for £0)
3. There is a button at the top that should say "not on this ipad"
Click that and it will list them all and you can reinstall it.
Over to you.