Old MS Office clip art collections

[nacelle]

I am looking for the old clipart collections from Microsoft Office 4 containing Word 6 and Powerpoint 3.
I got hold of a copy of Office 4 but half the clipart is missing. Which means the clipart i am looking isn't there.
Does anyone know where i can get all the old clipart from MS Office 4?
I have googled it to death and the Microsoft website is less than useless!
Thanks!