On the main page forum page "ThisIsMS.com Forum"
Just above the listing of all the forums you'll see to the *left* the time/day of your last visit to the forums and the current date.
To the *right* of that, just above the "Last Post" header, you'll see this:
View posts since last visit
View your posts
View unanswered posts
Hopefully, that will get you to where you want to be. Admittedly, I can't give directions on how to get out of a paper bag