Yeah, I tend to agree, you'll just have to hang in there and wait... I think your mum sounds like a really decent person who will realise her own family is more important to her than the organisation. It might just take an occasional email or phonecall from one of your kids to her. You'll have to remember too, this is a really hard time for her as well and try to understand her side of things. I remember my mum and my sister having similar disagreements and things eventually worked themselves out over time. Unfortunately though, you'll never get the days back that youre missing out on now.
Lifes too short for this type of crap isnt it.