Go to your iPad go to App Store then click on Updates or search for Racing Post Daily Edition in the app store.
You will then be able to update the Racing Post daily edition for iPad app.
IMPORTANT: After the update has downloaded, you will be asked to open the app again. Make sure you click 'Existing customers click here.' This will log you in using your exisiting Apple subscription.
Do not click on subscribe if you're already a monthly subscriber to the iPad daily edition and wish to continue reading the daily newspaper on your iPad.