Finally I received my RasPI! I burnt the debian6 19-04-2012 (latest as of this writting) image to an 8GB SD (class 4). Plugged the SD card to an Ubuntu and ran getparted to display the partition of the SD: total size: 7.5GB, used: 2.5GB, unused 5GB.
Plugged the SD to my PI. Booted up, type user id: pi, password: raspberry. It works like a charm!
Next, I like to install OpenOffice (the extra 5GB should be plenty!). Here is what I did: started LXTerminal, and typed "sudo apt-get install openoffice.org".
After a bunch of files were downloaded and installed, I got: "Could not resolve http://ftp.uk.debian.org
. Failed to fetch http://ftp.uk.debian.org/debia.....e4_all.deb
What can I do next? Thank for your help.