We use Global Gold in the UK for Askaboutmoney. They are expensive but they are excellent and have a speciality in supporting vBulletin , the software we use on Askaboutmoney.
I also use Blacknight for two other much simpler sites and they really are excellent in terms of service, including telephone support. I would highly recommend them.
Register 365 and Hosting 365 are two different companies. Hosting 365 sold it's domain registration business some years ago to Register 365. We had askaboutmoney hosted with them, but it didn't suit me as a non-technical person as problems were difficult to solve.