Hi Tim - The book has a French version called Sémences de Kokopelli but there is an English version available on the website I gave. They are currently setting one up for Belgium too.
They reckon to have 600 varieties of tomato, 400 sweet and chilli peppers, 50 aubergines, 250 squashes, 80 melons and 250 salad leaf plants among 2,700 varieties in all.
They are very keen to promote organic methods and biodiversity and campaign against companies like Monsanto and GM. I approve. they also gave free seeds to a school in the village where my favourite plant fair is held in spring. The kids sowed them and sold the resulting tomato and pumpkin plants at the fair to raise funds for the school. Brilliant.