Hurray! Thanks to Cyn, via a Ravelry forum, I have managed to have my posts in tags and categories! And thank you, Brenda, for directing me to Sharon’s article about the difference between them. Being an avid book reader, the analogy of categories being like the contents section of a book and tags being like the index made it much clearer.
Still looking into the Blogroll problem … and I also need to upgrade another plugin called Photopress, which I used several months ago to upload and manage photos, because the present one won’t work so lots of posts don’t have their photos. So if there are any photos not showing up, hopefully I will manage to sort this out soon.
Blogs… don’t you just love them?!!!