You may want to look in the OS control center
main menu -> configuration -> PCLinuxOS control center (you will need to supply the root password)
from there, click on the Networking tab
You will see several potentially helpful gui config tools there, including Reconfigure network interface, Remove a network interface, Create a new network interface, Configure DNS settings (IP address), and Monitor network connections
Under Reconfigure network interface, you might be offered to choose your ethernet card from the pulldown options at the top of the screen.
Under Configure DNS settings, you should see a screen in which you are informed that the OS is testing for your connection. Don't worry if it tells you that the test failed. This happens with my connection, but I am still connected to the internet *shrug*
Under Create new network connection, it looks like it will walk you through the activation of you ethernet card.
It might be a good idea to also post at http://www.pclinuxonline.com
, as I think that board is specific to PCLinuxOS.
I agree, this is the easiest distro out there, as far as I can tell.