how to update squad and other things???

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I am playing fifa10 on my pc.i want to update squad of all clubs and also other changes.is there any way to do this? if yes can anyone please tell me how to do this?? I also want to play fifa10 as a lan game between my pc and laptop,can anyone tell me how to do this?? I have tried to find it out many times but i am not able to get sufficient information regarding this issue.i will be very thankful if anyone can help me