ms office 2007 question?

I lost my msoffice2007 cd while moving. But I have the key in my laptop saved as a file(thank God for that). How do I or where do I find genuine ms-office 2007 download so that I can use my key.

Thank you

 

http://office.microsoft.com/en-gb/default.aspx
try there

 

It says it cannot recognize my key. do you think customer service will help?

 

try customer service. it shoul work i dont know why it doesnt. maybe your office was cracked?