I didn't quite read through all the previous posts (just 3 pages worth  . I made my first batch of yoghurt yesterday with great success, I followed the original recipe but substituted the 3 tablespoons of plain starter yoghurt to a small tub of Brownes creamy vanilla yoghurt (which is equivalent to 3 tablespoons & has live cultures in it). I let it set for 8hrs wrapped inside a sleeping bag, put it in fridge overnight & today we had the yummiest creamiest thick yoghurt! It didn't even need sugar added, just ate it straight. Won't be buying yoghurt from the store anymore!