Flash player 11.1 alternative

[Android Question]

I just got an Adroid tablet which has flash player 11.1 installed, but every time I try to view a video I am either told that I do not have Flash installed or I can only hear sound. I tried manually downloading and installing, but I was told that I already had the latest version installed. Any ideas as I would like to be able to stream, the majority of which requires flash player