Ok, we’re getting somewhere. Thanks very much for you help.
I’ve created a Child Theme file in it’s own folder within my website, and filled in all the details as per the instruction page, however I’m not certain how to make the sidebar advertisement show up.
If it helps, the sidebar advert (jpg file) is located here.
According to another WordPress help page, I think the code is
<?php include (‘sidebar2.php’); ?>
However I’m not certain if this is correct, and more importantly, even if it is the right code to use, I have no idea where to insert this line into the child page.
Is anyone able to tell me where to put this line (if it’s correct)?