^hehe
Once you get online then use pacman
You dont have any serious problem. Just need the eth0 unterface to setup.
ifconfig -a will give you whether your ethernet (eth0) is up and running . But it seems its down.
/sbin/ifconfig eth0 up will bring eth0 interface up and will assign the static ip as in rc.conf file
As for pppoeconf, have you installed
rp-pppoe package?