Unfortunately, what I've stated above is still topical: Flash streaming has always been a PITA.
In my (numerous, independent and reliable) tests (see the latest one at https://discussions.apple.com/thread/4048509?tstart=0 ), I've found iSwifter and Puffin the two best players (I'm in Europe so your mileage may vary if you're in the US), followed by Photon.
The first ever Flash player to hit iOS, SkyFire, seems to have pretty low compatibility rate lately and I, therefore, don't recommend it at all.
This ONLY applies to Europe and the present day. It's not known when (and if) the servers of iSwifter and Puffin stop working in the future; the companies go bankrupt etc. That is, you can't have any warranty any of these apps will work tomorrow.