I highly recommend the Pick's Disease Support Group. The next meeting is in London on 2 September.
My mum has frotal-lobe dementia. Her behavioural problems have been really hard to cope with. For example, she has trouble making sensible judgements. If I have to convince her that something is a good idea, I just have to be patient. For example, various people suggested she arranged for me and my sister to have power of attorney. She totally refused, and there was no convincing her. I just regulalry talked to her about it, and about 8 months later she finally agreed! The same with her banking, it took me a couple of months to convince her it was a good idea to let me look after her finances. When she digs her heals in, I just back down for a while so I don't stress her out too much. She agreed after about 3 months! At least know I can ensure that she doens't buy inappropriate things (like a car that bought not long before she was diagnosed, she is a small woman and the car was huge, she had trouble driving it!).
All her friends know about the illness so they understand why she might behave strangely sometimes, and they are all very understanding. But the other day I found out she had gone to a pub with the purpose of chatting up men (she has a boyfriend!). I just tried to explain to her that it was not a good idea to go to a pub on her own and talk to men that she doesn't know. I don't know if she understood though. Sometimes I wonder who is the daughter and who is the mother!
Once we found out she had frontal-lobe dementia, things started to make more sense. One of the symptoms can be lack of empathy for other people, not understanding their feelings. Once I realised that her extreme selfishness was part of the illness, it made me feel better. She has always been quite selfish in some ways, but the way she is now is much more extreme.