After not using SSP for a while (yes it is sometimes too slow) I have used the updated Kimili Flash Embed plugin V1.4.3 and changed the code a bit.
<div>[kml_flashembed movie="/path/to/your/loader.swf" base="/path/to/your/" height="520" width="828" scale="showall" bgcolor="#ffffff" /]</div>
*note the <div></div> keep SSP centre and bgcolor=”#ffffff” is your background colour.