CTRL+S to save your document. Give it:
When you save in Fireworks, if you've started with a blank document, the file type should automatically be PNG (this is what you want - if you don't see that, then use the drop-down menu to set it to that before saving). This keeps the working layers so you can go back and change things.
In your folder it will look like this...
You cannot do save a copy from Fireworks into Student Share.
To hand in certain projects, you must first in Fireworks save a copy of the project as a JPG (so they're smaller file sizes), rename them. You can do this all from Fireworks.
Go File>Save As and change the file type from the default "PNG" to "JPG" from the "Save as type" drop-down menu.
You'll see a checkbox - you can uncheck that or leave it.
Rename it so it includes your first name and last initial.
To hand in your before & after JPGs for the project,