I've had a response to me email to CRUK (it has taken them a week to get back to me though!):
Dear XXXX,
Thank you for your e-mail, which was received on 5th December 2011. Firstly, I am very sorry to read of the passing of your husband, please accept my sincere condolences for your loss.
Thank you for drawing our attention to the comment thread on Mumsnet regarding the posters in our shops. This poster campaign aims to be upbeat and positive, highlighting the link between our fundraising, our research and the impact this has on real people. The campaign features real people and we used their personal thoughts and comments in the captions.
We appreciate that in this instance, the message on our posters may have been misinterpreted. We would never suggest that people who have sadly lost their lives to cancer have not fought hard enough.
Our mission statement is Together we will beat cancer and, through our work into the prevention, diagnosis and treatment of cancer, we look forward to a future that is free of this disease. While progress has been made, there is still a long way to go before we reach this goal.
On behalf of Cancer Research UK, please accept my sincere apologies for the offence that has been caused to you. Should you have any further questions or concerns then please do not hesitate to contact me.
Kind Regards,
Paul McManus
Complaints Coordinator
I'm not overly impressed by the response. I feel like he's saying "Sorry we offended you, but others aren't offended, so we won't change anything"