Hey frenz ma ques is related 2 Exams?

I m studyin in cl 10.. iCse board....i wanna download mock testpapers of all the subjectsof 2010...Whish site should i go..also give me some tips such as which chapters should i give more importance....(Plz..sent me direct link)..and those who w'll ans..this Ques.. plz.. mention that whether u have a profile in orkut or not pls...Then i w'll send u a frend request