It might actually be Xfree 4.0.3, I'm not sure
if 4.0.3 works enough for you to be able to use it, you can get 4.1 with the software manager with no problems at all.
Just open the Mandrake Software Manager (or whatever it was called) and then add a "Cooker" source. You can then download Xfree 4.1 as if it were a package on the CD.