Okay, no problem. Thanks for your help.
For anyone with significant knowledge of WordPress, your help would be much appreciated here:
I have installed the "Duplicate Post" plug-in (http://wordpress.org/extend/plugins/duplicate-post/
). However, after duplicating a post, the URL of the post is still http://www.site1.com/category/post
(just an example URL; assume site 1 is the site where WordPress is installed), and in this URL I can't seem to edit anything except "post", i.e. I can't edit the rest of the URL. I would like to be able to edit the URL so that the post appears on another site (let's call it site 2) i.e. so that the URL of the duplicate post would be something like http://www.site2.com/category/post
If I can't do this directly with the Duplicate Post plug-in, can someone explain to me any indirect methods?