First off, you're in a thread... Do you mean make a thead? You go to the forum and click the "New Thread" button. It's in the top right hand corner in Ocean, but I don't know with Synthesis, and I don't feel like checking. It's pretty self explanitory from there.

Also, to add someone to your ignore list, go to their profile and click "Add ______ to your ignore list." It's on the bottom right in Ocean.

What is it they say about silence being golden?