You must be copying a document page, rather than the text.  Or you are trying, somehow, to paste a .doc file in the "Notes/Captions" box.  That won't work.

What you have to do is highlight your text by setting your curser in front of the first letter, then keeping the button down on your mouse, drag it across and down the page until all your words are highlighted. Then, lift your finger from the mouse, right click the anywhere on the highlighted text and a box will appear.  You select "copy", then 'paste' in the "Notes/Caption' box on the upload page.

You have to do this in one action, so have the Renderosity upload page ready to paste in.

If the text does't stay highlighted for you to copy it, you have repeat the action until you can get it to stay highlighted long enough to copy it.  Remember, after you lift your finger when you highlight, right click on it, any other clicks will remove the highlight from the text.

Keep trying.  We will get you uploaded yet.  I won't give up on you. 

“Music is harmony, harmony is perfection, perfection is our dream, and our dream is heaven”
Henri Frederic Amiel