Go to the web site you posted. Download the boot and root disks. Rawrite the boot disk images onto floppy disks. Boot with them, and begin network installation.
Yes there is a way to install without the cd's. You could download the entire Mandrake tree from the internet (its over 1.5 gb), and put it on blank partition. Then boot using a boot disk and root disk, and install off of that partition. But, you would be better off getting the CD's. The ISO's should be out shortly.