Many thanks for getting back to me. I seem to have ran into a problem. These are the steps that I took...
1. I created the new minimalistics directory at the same level as the existing one.
2. I logged onto my blog and changed the wordpress address (URL) and the Blog Address (URL) from "wordpress" to "minimalistics".
3 I then clicked save changes and all I got was a blank screen with the message "No input file specified."
4.I was able to return to the Dashboard, but when I click on administration>settings>general/ I got the same message as above.
5.At that point the files were still under the wordpress directory.
6. I then tried pasting them into the minimalistics directory but then I got a "404" message when I try to enter either administration>settings>general or administration>settings>permalinks.
7 So I then moved the files back to the original (wordpress) directory (where they still are) but any attempt to enter either administration>settings>general or administration>settings>permalinks still results in the message "No input file specified."
I followed the instructions to the letter, but now I'm unable to go forward or back. It's all a bit confusing, have you any idea what I've done wrong?
Many thanks Seoirse