you dont actually have to do it manually
you can start the network service
just click K menu -> services -> network -> network start
now the networking is up and running and you can use Wicd
K menu -> internet -> Wicd
her you can mess around around with your network connection both wired and wireless (it has a GUI!)
not sure how to make the network start at startup but i saw it somewhere around here try searching.
hope this helps




