Lost 2002 word product Key

Hi all my friend has vista Basic 32 Bit on her Dell Desktop. Her computer crashed and so she had to replace the computer but now as she is installing her Microsoft 2003 suite with word 2002 on it and she cannot find her product key and it is not like she can scan her computer for it because her computer is no more.

Is there another way to find it with Microsoft?

Thanks so much.