Stating the restriction only in a file bundled with the product, is like wanting to park your car in England, relying on the UK law that paid car park managers must compensate for theft etc unless stated otherwise, and then, after you have paid, finding a "We are not responsible for ..." message printed on the ticket or on a notice that can't be seen from outside the car park. Surely among so many Renderosity members, one is a lawyer and can give a ruling here?