I'm getting the same error at YouTube, which is: "Hello, you either have JavaScript turned off or an old version of Adobe's Flash Player. Get the latest Flash player"
I'm using TC 2.5, and I load FireFox.tcz 3.5.5, getFlasn10.tcz. I get the same error with Opera.tcz (v9 I think).
I wish I knew which modules to load, on a virgin TC2.5 install, in the AppBrowser, to run a browser with Flash. And sound.
This notebook is about a year old, it works fine on generic Puppy 4.3 for Flash, Sound on SeaMonkey.