Have you tried to do the following fixes to see if this might jump start the update process again? Have a look below and see if this may help:
1. Force the app to close?
2. Try to restart your iPad?
3. Try to do a reset?
You can try this in order, if an app becomes misbehaves...
Force the app to close down by pushing the home button twice or by doing a 4-finger swipe to bring up your multi-task bar. This will show all the apps that you have visited. Press the app, until it begins to shake. Close out the apps by pressing the red circle in each app. It will only quit the app and not delete. Than try to re-open the app and test out.
If that doesn't work, restart the iPad by pressing the power switch down to power off.
Third is to do a reset by holding the power switch and home button together until you see the apple logo.
You may also want to try to delete the app and than try to install it again by connecting to iTunes on your computer using the USB connection.
Let us know if that helps. We will also move this to the help section for better attention.
Ski ~ iPadforums Moderator | iPhoneForums Moderator
Skimonkey ~~ sent from my iPad using iPF