Tip:
When first using Zoom you are asked to download a launcher plug-in. After this, you should be able to open the webinar room from the link. The webinar room is timed, and will open when the webinar begins. Remember to click "join audio conference by computer" when signing in. If you are using a headset, it is easiest to plug it in before opening Zoom. If you cannot hear any audio, check that the correct output settings on your device (normally "internal speakers" or "headset") have been chosen.