[CentOS] Flash-plugin ?

Hi
Have anyone got Adobe's flash-plugin 9.x.x.x working under centos 5?
I can get video working ok, but no sound. Using alsa, and can play with other 
players all other sound formats, but flash's sound.

Have tested plugin with FF 1.5, latest opera and konqueror, dead :(

Anyone could give me some "twisted ironsting" model, how to get it
working. After couple of hours googling, no help, but similar problems
loud a much.

Jarmo