Sony Ericsson K550 / W610

I have the Sony Ericsson K550i. I have seen various videos and numerous fourms pretaining to the fact that you can get the W610 firmware added to your K550i to give it all of the walkman features. I have gotten some suggestions on how to do it but I've tried all the suggestions and still just cant get it to work. If someone knows how to or has heard of this please let me know. Thanks