1. Install cabs listed here:
http://forum.ppcgeeks.com/showpost.p...0&postcount=46 (Thanks
CovKid66)
2. Run the fixoperaflash.exe.
http://handheld.softpedia.com/get/Tw...sh-80818.shtml (Run, "Fix", "Patch", Soft Reset). You might get a warning that Opera is Running, but you can ignore this prompt IF you have installed the cabs listed above.
Flash will now function properly in Opera.