Java, Flash and Opera in OS11 64bits

Hi!
Im trying to run 64bits OS11 on my Dell Latitude D830.

It seems faster than 32bits version of OS.
My problem is installing Java and Flash and to get it to work with Opera.

Java:
I downloaded and installed the 64bits version of JRE 1.6.0.10 (Latest version). It installed without any problem, men both Opera9.62 or Firefox3 detect Java.
I also installed OpenOffice3 and during installation there is some messages about it couldnt find Java.

Any ide?

Flash:
Flash9 is already installed in OS11. Firefox3 do run Youtube so its seems to work.
But Opera9,62 will not work with Youtube.

Any ide?