I was so worried when the kitten wouldn't eat the dry food we gave him, but the problem was that he wanted some real meat. Once that was in the cup, he ate it all!
The kitten came from Kissojen Suojelu, they have an excellent blog telling of the everyday lives of their foster homes, have a look! It's only in Finnish. Update! Kisu also has blog posts in English, you can find them via this link!