Lost/found cat

I was on my way to the post-office when i met a kitten who was crying and crying!
Some awful person has thrown it away and she was really scared to be near the highway. I picked her up and brought home. But I already have two cats and third one is too much. We try to find her home, but people are strange: they say they will come and don`t!
And because of my worries about a cat  I can`t write letters to my friends and deal with swap at all.
Some pictures of a cat :)