Basically the same way you load programs onto a regular computer. Download them straight to your Raspberry Pi's using the web browser, or put the program onto a usb memory stick and plug into the Pi and copy the files over to it. You will need a usb hub (probably a powered one) as the Raspberry Pi only has 2 usb ports.
Thats great. How do i load the rasperry pi.all i get at the moment is arch linux root and root. What do i do to log into the proper blue screens and programs running?