If you can get onto itm look up into the CHAT cpot on the top bar. it reads
Home|Calendar| Chat| Search|Members|Help
Click on chat and look for anyone there. We don't really stick to our own rooms- just look for someone, state your problem and someone will probably speak up. Even if they don't have arthritis, they know what it is like to have a problem that they need support for, and may have some of the answers you are looking for.
Beyond that, put out a time/date on a fourm line and ask if people will meet you in the chat room. Look for people to sign up and meet them there. I have seen other places that have fourms as well, but they are all similar to this as far as I have seen.
I hope this might help you.
When you cannot stand, on whom do you lean?