Hello Tiz.
Can be what TG says, but if the mp3 is the same size as zip, as HAL9000 suggested, change the extension of the big mp3 to zip, and try to unzip it. As for the smilies: when you write and want to insert one, just simply click on a smilie you want. For instance, when clicking on applauding smilie, you'll see : A P : appearing in your text (without spaces). The smilie will only appear after you posted your message.
