[CentOS] more: Have install diskette for 3.0, but can't find the .img for 4.0

I have found something called:  diskboot.img

at:  http://www.gtlib.gatech.edu/pub/centos/4/os/i386/images/

But it is 6Mb large (6411Kb) instead of 1411Kb

And the rawreadwrirewin program gets an error on it when run on NT.  On 
Win2000, it makes a diskette that fails to boot..

So really, HELP!!!!

I 'just' discovered that my old bootable diskette is for Centos 3.0, and my 
other CDs are Centos 3.3.
================================================================

OK.

I am in an emergency crunch.  I need that 4.0 install diskette.  Like 2 
hours ago!

Where is it????????

I don't want to have to install 3.0 on this box.

Illegitimi non Carborundum