@Snip3rita Grazie As Chryses told, you need first of all to unzip the file, you'll get a .img file, then download a program like this: http://sourceforge.net/projects/win32diskimager/ and use it to flash your SD Card with the img file from Minera.
Enjoy!
Thanks for your quick reply! Ok before I attempt this one last question. I have a usb wifi adapter in the Raspberry as it is far from wifi router. Can you explain what needs to be plugged into what. Example: use cat5 to connect X to Z etc. Or can i use the wifi adapter? Thanks so much as this looks the final little hurdle. I don't mind moving the raspberry, if required to make a hardline connection. Let me know and awesome job on this support forum.
An ethernet (cable) connection is recommended, but if you wanna use a Wifi instead you can, but you have to configure it before use (SSID and WEP key at least).
Login into Minera (terminal not web) and do "sudo wicd-curses" you'll get a terminal screen to configure your wifi dongle (if supported by RPI).