Ok, remember to breathe. First, get an old sock, fill it with some uncooked white rice and tie off the open end. Place it in your microwave and heat it for a few seconds at a time until it is warm, not hot, but warm. Place it in with the kitten and allow her to snuggle up to it. If a sock and rice isn't available, fill an empty soda bottle with hot water, wrap it with a thin towel and place it so it cannot roll over onto the kitten. Warmth is extremely important for the kittens' well-being and many won't nurse or suckle from a bottle if they are cold.
Once sufficiently warmed, you can take a small drop of corn syrup (Karo for those here in the US) and gently smear it in the kitten's mouth to stimulate the sucking response. Have a warmed, filled bottle at the ready and when the kitten begins to make the sucking response, gently insert the nipple into the kitten's mouth to begin feeding.
If you haven't already, I strongly urge you to visit www.kitten-rescue.com
and read up - it is an excellent resource and may help you to keep these babies alive.