Adding a book cover

[Baffi]

I'm trying to add a cover for this book: http://www.goodreads.com/book/show/11...
But I can't find and option to upload anything but additional images or improve the meta data. Is it simply not possible, or am I missing something?
Anyway, this is the cover for this edition: http://img408.imageshack.us/img408/65...
Would someone be so kind as to add it? Thank you. :o)

[Nada]

Added!

[Baffi]

Thank you. :o)