Hi Terry
I take it your poems are already typed up if you are wanting to email them?
If so, all you need to do is to copy and paste.
I will take you literally, and presume that you don't know how to cut and paste - if you do, ignore my waffle!!!

Open the 'posting' box, as well as have your poem open.
Go to your poem first.
Highlight it by clicking and holding the left hand mouse button at the top of your poem, keep the mouse button held down, and move the mouse down to the bottom of your poem. When you have the entire poem 'highlighted' (this will show as black shading over the words), release the mouse button.
Click the right hand button on the mouse, go down to 'copy', (you will see each word highlighted as you move over it), then click the left hand mouse button - that will copy your poem
Now go back to your posting box.
Put the flashing cursor at the point where you want to insert your poem
Click on the right hand mouse button, go to 'paste' and click the left hand button.
Voila!!!!!

There is your poem all typed out.
You can add any comments, etc you want to.
Hope this helps (or maybe you already know all of that, but you did say to work on the theory that you know nothing about it!!

Give us a yodel if you have any more problems.
Catchya
Irene