The ISO you downloaded from Suse is probably the Personal edition, which is just 1 CD, and I'll assume the article you read was referring to the Professional version. The Pro version is either 4 or 5 CD's (IIRC) but Suse does not make the Pro installation ISO's available for download. If you want the Pro version, you will either need to buy it, or you can perform a Network or FTP install from Suse or a mirror site.
The end result of the latter approach is basically the same as if you were to install from CD's but it is more complex to set up, and will require quite a bit of time to download the packages (a network installation will require that you copy approx 3.3G of data to your local machine, and depending on the speed of your connection may take quite a long time). -- J.W.