idt cases n notifications for november 2010

hello.i gave my last exam in may 2010 ca final old course.unfortunately i lost in aggregate.now i want to score exemption in IDT.i purchased Yogendra Bangar book applicable for may 2010.i want to know if the same can be useful for November 2010 exams.how will get the latest cases,notifications and circulars applicable for November 2010??....i hav select cases and supplementary material which i used for may 2010 exam...but will this be enough or should i go for another one??