In administration, its all about priority. And the BBI Networks bonds are on the same level as the corporate banks.
SPARCS, BEPPA and BBI would most likely get very little if anything, although come November most SPARCS holders will convert I suspect, so they will be gone from the equation.
Anyway, I can't see administration being possible until Feb 2010 at the earliest, if it comes to that, which I don't think it will if they sell DBCT.