From my and many of my colleagues both on this board, at bmibaby and on other such posting sites, have seen Mama Air as a no-go-airline.
Maybe a kind of GCSE Economics project, that was never meant to be a serious airline.
Mama Air have been talking about launch of services ex-Manston for a few YEARS now and keep putting the date further and further back, so I don't see why they don't just shut their website down.
Manston has been in talks with a number of lo-cost-airlines regarding potential launch of services, and maybe Air Atlanta, could turn some of their 757 routes into scheduled ex-Manston?