The editor tools look like this:

Using your mouse, hover over some of the icons and text describing its function will appear.

A couple of useful things that you may want to do is add a link to another website and with this editor it's as easy as selecting some text like this:

Then just fill out the URL as in the example below:

Click OK and then save your entry.

Add an Image

Click on the image icon as shown below.

Click Browse Server:

You will see the Browse window where you can choose an image you have previously uploaded or choose to upload another. To upload a new image, follow the steps on the image below and your image will show up below. Click on the image you uploaded to use for your story/article.