I don't exactly get what you mean with the mirror term. I am quite a rookie
IT-wise.

The only thing I want is a local copy on my hard drive of my own blog which is
hosted by Wordpress (thus the URL would be name-of-my-blog-etc.wordpress.com)
; obviously I'd like not only the blog entries to be saved as back-up but also
the lay-out because the blog has internal links (like to browse the blog per
category or read entries from a specific month or category only). There is a
blogroll with links to external sites as well but those sites don't need to be
copied.

All I am after is to make a back-up of my own blog, nothing more. Can I do
that with HTTrack?