Follow up on http://www.creativeparts.co.uk
The owner Trevor was very helpful and after emailing him a couple of times with questions and sending payment, I posted my creative zen v plus on late friday by registered post for the on/off switch to be repaired and received it back today. The player was well packed and returned by registered post - it is back in perfect condition, the new on/off switch works just as it should so have no hesitation recommending them.
Whilst I was waiting for my zen to be fixed, that same Friday, I ordered the creative wired remote from Amazon which at the time I didn't realise was also a purchase from creativeparts 3rd party seller store - it arrived the next day! Had to wait until my zen returned before testing it out - and works beautifully!