question about the FC3 images

[David Bruzos]

Hello everyone:
I downloaded the first image for the speakup modified FC3 yesterday.  However, something is wrong with the server and I 
can not get the rest.  So, can I use the original images from the Fedora release?  I mean, can I just use the disc 2, 3, 
and 4 from the official Fedora distribution with disc 1 from the modified Fedora?
If this can not be done, can you tell me why?
If disc 2. 3. and 4 images are the same, then, downloading them from one of the many Fedora mirrors would really help 
the Speakup server...

Thanks!

David B.