Hi Biddi4,
Welcome to NT!
We have a specific thread for SPMS and PPMS'ers but usually it's very quiet. Most of the MS'ers here just post on the MS thread or The Stumble Inn. You're free to post wherever you choose but the majority of our MS members post on the MS forum. I''ve included the link to the sticky thread for the SPMS/PPMS thread.
http://neurotalk.psychcentral.com/thread108560.html