If you're looking for a way to view web pages on your Surface RT, or any other Windows RT device, there's a tool out there to let you update the Default Whitelist. In doing so you can authorize web pages to display Flash content in your browser.
Just download the Windows RT Flash Player Tool here and install it to your Windows RT tablet. You can download/install from the Windows RT browser or transfer it via USB, SkyDrive or other means.
Once installed, just follow the on-screen prompts to add new sites to the Windows RT Whitelist. Once added, you should be able to view Flash content from your Windows RT browser.
Source: NeoWin; Thanks, Lorenzo, for the tip!