Congratulations on venturing into level making.
I suggest you read the
Official Forum Rules again, which would point out to you that "need help" is not quite a sufficiently descriptive topic title, and would point you to this board I moved your topic to, which a) is the appropriate one for that sort of questions, and b) has a lot of helpful, stickied topics to answer basic questions like this one. Also there's a [faq] that you might want to read.