Shoutbox

Just to add to what matty has said, you have the emoticons saved as gifs. IIRC, support for gif files is only available in Plus! 4.79.342 (the public beta), meaning if you don't have this version the images will not show. You will also have to add <Format> tags, as Plus! looks for PNGs by default.

XML code:

---

<Control xsi:type="ButtonControl" Id="BtnPlane">
                        <Position Top="165" Width="300" Height="20" Left="10"/>
                        <Image>
                                 <Name>Icons/airplane</Name>
                                 <Format>GIF</Format>
                        </Image>
 
                </Control>

---

Hope this helps

Edit: fixed xml