Please answer questions about Microsoft Office!?

My school has version 2003 of microsoft, for word, excel, and powerpoint, at least. I need to purchase microsoft (probably home and student 2010) office, and it needs to correspond with this version and others I may get from other senders. I probably will by it from Costco for 2010, but I'm open to suggestions... แสดงเพิ่มเติม My school has version 2003 of microsoft, for word, excel, and powerpoint, at least. I need to purchase microsoft (probably home and student 2010) office, and it needs to correspond with this version and others I may get from other senders. I probably will by it from Costco for 2010, but I'm open to suggestions at other places or online. And will microsoft automatically change the compatibility, or will I have to do this? How? Is there anything else I should know? Even random, helpful computer tips? Thanks!
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