To view more details for an event, click on the link in the calendar.
To add an event, click on the plus sign at top right under the menubar (if the plus sign is not there, you are not signed in! see link at top of page). Then enter your event details (if you have an image, add this before the text - see below*), and click on 'single' or 'longterm' event in the drop-down menu; finally, click on the black 'publish' button. *To add an image, click on the picture icon at the top of the box, then browse for the relevant file on your computer (or URL on the internet), and then on OK. If it is too big, click on it and then on the picture icon, and try e.g. 400 pixels in the 'width' box.
The Events moderator will then add your event to the relevant calendar (either for single or longterm events), with a link to your post. If they are a bit slow to do this, you can contact another moderator or Admin!