Can I do a reset and still get my MS upgrades back?

[AWS]

I need to do a factory reset on my laptop, but I upgraded to vista business with MS office. I can do the restore, but how do I get the upgrades back, and will it cost me more money?
HP Pavilion dv2000
MS Vista Entertainment {original}
MS Vista Business {UpGrade}
MS Office 2002 {Unlocked}

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