It´s ok he is new, and probably won´t find it if we moved it just yet...
Anyway, the file must reside on your computer, use the browse button to select the file on your computer... so it will not work for a file located on an internet location.
It must also have the extention .jpg or .png it cannot have .bmp, .tif etc... And it must be less than 12kb in size.
If you meet those requirments it will work.