I have applied W660 R8BB001 Unlock.vkp and unlocked network padlock so now all padlocks are open.
I can now enjoy unlocked telephone plus as this is w660i it gives another joy of freshness, something new.
I have also enjoyed the whole excitement whether I am going to ruin this mobile or not, but this is just a spare one so I was not risking a lot.
Many thanks for all your help.