hello can i install walkman 3 player on my k530@w660 ?

No.

so why at k550@w610 it can be ? soz for bad enlish

W595, W760, W890, W910, W995 have walkman 3... the rest has walkman 2 or lower.

You can't just "install" walkman 3 or any firmware element to older phones. Walkman 3 requires flash lite 2 and a better heap than old phones like K530.

Thanks for answer

I think he means the patch to change layout of Walkman..