Can i install Android OS on Sony ericsson Satio cell phone having Symbian OS

[TwinkleTwinkle]

9.4 with S60 5th edition UI? I purchased Sony ericsson Satio cell phone having Symbian OS 9.4 with S60 5th edition UI installed on it, but i want to install Android OS on it.........IS IT POSSIBLE??? if yes please tell me how to delete installed OS and how to install android OS and where from i can download android OS is this OS free?
THANKS