Hello!
Well, I'll try to keep it brief, but there is lots to learn!!
Housing - as big as possible!! At least 2 foot head height and a minimum of 5x2 hutch with attatched run or similar. Must be very secure and fox proof if outdoors or you could have a house bunny!
Food - Unlimited fresh hay. Hay is so important - it should make up 80% minimum of their diet. Also a handful or so of good quality pellets each day like science selectives or Allan and Page. But find out what they have been having up till now and change them over very slowly (by mixing in it and gradually increasing the new food over a period of 10 days or so) if necessary. Also fresh veg every day like spring greens, celery, brocolli and so on. No iceberg lettuce and only occassional fruits or high sugar veg.
Vaccinations - VHD once a year and Myxymatosis either yearly or twice yearly depending on your local risk (ask your vet).
Have a look through the reference section or use the search facilitly - you will find lots of good info!