They are archived. I set up a robot to download every page and save the html. You can no longer post to them, because the software is no longer there, just the html. My old host decided to discontinue support for my forum software, and community server kinda sucked anyhow. So I moved to a new host and brand new software. TMD Hosting has GOT to be better than Webhost4life. wh4l went down all the time and their support was abysmal. TMD's support is top-notch so far, and they've got a hosting plan specifically for Invision Power Board, so they appear to know what they're doing when it comes to supporting this software.
Anyhow, the archives are just there to save the information. Feel free to start a new topic that continues those conversations, just be sure to post a link to the topic you're referencing in the archives!
Charles.