can you provide more information?
Which operating system are you using?
Which browser are you using?
Can you provide a link to the flash content you're trying to access?
Based on what you've said, you've already downloaded and installed the latest flash version. can you veify that the flash content loads on this page? What version does it say you have installed?
I've looked into this and found out that Pogo requires Flash Player 11 to play most of their games. Flash Player 11 is supported for Mac 10.6+ so if you are running an OS older than that, you will have compatiblity issues. Hope this helps.