To edit and existing article, follow these steps:

 

1) If you are on the Welcome page (the page you are sent to after logging in), you can click the large "Article Manager" button:

 

Or you can hover your cursor over "Content." Other options will appear when you do this.

*Note:   The other options will only appear if you are not in edit mode, which is denoted with the word [Edit] next to the title of the page you're on.  Example: "Article:  [Edit]" or "User:  [Edit]" 

Then click "Article Manager."

 

2) Once in the Article Manager, click the name of the article you wish to edit:

 

3) Now you can edit your article:

 

4) Once you are satisfied with your changes, click "Save."  This will save your changes and exit the article editor. 

If you would like to save without exiting the article, you can click "Apply."