You cannot get flash for ipad2 or ipad. Apple won't do it as it has potential problems. The possible options on the Apps store have been removed due to problems. Hence you will not ba able to view media that requires it.
All of the iOS devices do not come with Flash nor will they ever come with it.
If you want Flash you will need to search the App Store for apps that have it.
"SkyFire" is what Apple recommends.