After some searching online looking for some Sue Spargo Wonderfil threads, I ended up phoning Mill Rose cottage and ordering some new threads. My package arrived last week!
I had noted down a couple of colours I liked, but found so many on line - some had numbers, some had names. The staff member at Mill Rose explained that there are new colours released every year, hence such a huge range. I described the colours I wanted, and they had 3, but I ended up having to put my faith in my description & the staff member's choice for me! Luckily they are all pretty much what I had in mind. Will have to trace off some new designs once I finish my current project. The variegated green is just right.