Blaster 360 - Xbox 360 Please read thank you ?

Hello where in stock in the UK is the blaster 360 to buy and once installed to the 360 what from there do I need a certain pc computer motherboard for the blaster 360 to load on to my pc to do the flash or is there a disk how do i get it flashed to play my backed up games also it's a samsung ms28 xbox 360 drive that I have got that just if needed to know.