[IDEA] Linux XBIAN for 64 bit download ONLY ???

[Mark2013]

Per the xbian downloads page:

http://www.xbian.org/download/

"Linux

You can download our Linux installer here. NOTE: Requires 64 bit Linux, X11 and Qt 5 or higher to be installed via your package manager. Must run in X11 session. You can also use DD and download the image below."

I use Linux, Ubuntu, Ver. 12.04 (Precise Pangolin) and it is a 32 bit OS. Does this mean I cannot download xbian and extract it to my Raspberry PI's SD Card? Or does this mean that a "dd" will dump the xbian file as a bit copy even if the computer "seeing" the download is only a 32 bit (That's OLD SCHOOL to you, pal!) OS. Does this mean I have to install Qt5 even with "dd"? I use the X Desktop, I guess. I know I use Gnome. X11 --what am I misunderstanding here?

Inquiring Minds Demand To Know!!!