OK, forget my last post.
UPDATE:
I managed to do a successful dummy-run on another blog.
Sadly, on the actual site, I got complacent and forgot to move the existing XSitePro site out of the way first.
Although the blog shows up at the main domain: http://EngineerYourSuccess.com, all the links point to the index page and I get a blank screen in Filezilla!
I can still see all the files in File Manager though so I moved all the ones that didn't say "today" in the last modified column to a temp-root folder, but it's still broken.
To make things worse my WP login didn't work (even though I copied and pasted) so I asked WP for a new one (using both username and email), but it never sent the emails. (My email for that account might be on the domain that redirects to the gmail one. I guess that would explain why I never got it).
So unless anyone knows of another way I think I'll have to do a total backup restoration, which I will learn how to do. Luckily I have a backup sent to me every week through a WP backup plugin.
Is there something simple I can do to fix it, or have I really messed up big time?
thanks a lot