I don't like to be the bearer of bad news, but most of the above posts are misleading, well intentioned based on mainstream x86 architecture experience, but not applicable to the box in question. What the user has is one of a number of badged versions of a box that runs an Alpha 400 processor and has either a 1Gb or 2Gb nand storage device. It does not even have a conventional BIOS. Not being x86 compatible you can only use the (rare) OS binaries created for the box and cannot create a simple boot card /USB stream to upgrade.
Fortunately there is a dedicated web forum for the box (http://linuxlaptopforum.ark2webdesign.co.uk/index.php/
) and members who have created a set of alternative distros. Search for 3MX or Retro on that forum for more information.