Unfortunately, you cannot install adobe flash player on your iPad. This is because the iPad was not made to support the flash player software. However, you can try using third party apps to try and play flash videos on your iPad. Check out http://www.ehow.com/info_8163812_ipad-compatible-flash.html for more details.
There is a new one in the app store. It just came out on feb 22. Put in adobe flash player and it should direct you to it. It has a world on the app. It is actually pretty good. I bought it and u stream it through the safari app.