Adobe doesn't support Flash for Android any more, except on 'certified devices'. If your Tab 2 isn't certified it might not work and can't be downloaded from Google Play.
The 2 solutions:
1. Buy a certified device. You might be able to return your Tab 2, depending on the return policies of the shop you bought it.
2. See if that some of your net radios have a way to be listened to without using Flash.
I have just bought Galaxy Tab 2 which is performing wonderfully great, however, I have problem with some of my net radios which cannot play because the system needs adobe flash player. I have tried to download this but I have always received the information that the flash player cannot be downloaded from where I am - Germany.
Please what can I do and is there any alternative solution.