What we used to do with our orphans is get a jar of Beechnut (not gerber) Baby food the stage one strained chicken (not dinners) The chicken is easy to digest and it smells really good. They really don't have to chew it, they can just lick it. You can add some KMR (or whatever you are using) . Try putting a spoonful of the chicken in the middle of a saucer and pour a little bit of the kitten milk around it. They are already used to the milk so when they lick the milk, they will get the taste of the chicken in there too. A tip about dry kitten foods, it is a little bit expensive, but Eukanuba Kitten food is good (10 or under). Even if you use it for the first bag, it is easy to chew and crumbles easily. You can take your fingers and crumble it over the chicken, then they will get used to that. Then you can start to offer a bowl a dry next to the saucer.
They are at an in between stage and it will just take patients- need more than just milk, but they are not sure what to do with real food! Just make sure they are eating one or the other. Some kittens eat off the plate right away, some can take 6 or 7 weeks to be comfortable with it. With such a big litter, you will have a variety of ones that want to right away and others who don't. They will all do just fine, it will just take time, they are just little babies learning!!
Good luck and I am sure they will be just fine.