Creating new pages: just click "Create new page" and type the name in the box as you want it to appear in the side bar. Spaces won't show in the sidebar, but automatically dashes will replace spaces in the URL.
Images: they can resized just by clicking and dragging as part of the editing process of any page. You can upload pictures from your computer, or link them with a URL.
Seeing previous versions and reverting to them: click on "History" in the menu bar at the top for any wiki page, and you'll see links to all previous versions:
(this picture was uploaded from my hard disk, resized by clicking and dragging here, and centered by selecting and clicking on the "Justify Center" icon)
Adding group members: click on "Group members" in the menu bar at the top and then on "Add members (Zoho user name or their email address to add them).
Contextual menus: right clicking on any selection displays options available.
Keyboard shortcuts: CTl + z / x / v work. Ctrl + A for "Select all".
All for today (Feb 01, 2007!)
My questions:
What does the no wiki sign among the icons above do?
How do you create a table of content? Clicking on the icon produced the first line of this page, but I can't go beyond that...