Treasure Island question

I wanted to add a review of the Folio Society edition of Treasure Island by R L Stevenson. I thought that this would be simple but it doesn't come up in any searches. So I'm just wondering about goodreads policy on reviews of different editions of a book. Actually I couldn't even find a review of Treasure Island from the "search books" query facility. Seems strange for such an important book. Am I doing something wrong?
And how do I go about adding my review?