Where im hitting the wall is playing back to all zones simultaneously, short of opening up the cupboard where my Media centre lives and creating a zone link i cant workout how to play to all zones remotely.
What I think you're saying is that you have media center on a headless box, so linking and unlinking zones is difficult?
If that's the case one possible solution is to make duplicate zones and link those once and leave them linked. So let's say you currently have a kitchen zone, a living room zone, and a bedroom zone. Copy each zone, i.e. create a "kitchen linked" zone, a "living room linked" zone, etc. Then link those three zones. Now you'll have your three original separate zones, and then the three duplicate zones all linked up. When you want to play to all areas, play to one of the linked zones.
One caveat is that I've never tried to use bubble Upnp; I know my solution works with gizmo, though, so it's worth a try.