Google lights fire

Replacement software MS Office2000 Professional - where to get this?? - office2000 professional serial

I wonder if you can somehow get this CD (Disc 1 of a 2-pack), I have a license Prof. MS off but it has now been broken accidentally. I think there are (fortunately! To be), somewhere he can get, legally, of course (as I am entitled to use it - have a few years ago for one reason in particular). I tried to email but apparently only msoft has lost to the ether, and written at headquarters in Belgium, she won out (by post) - no response has lost time. All offers of help, advice, how to achieve this?