glow wormspacesaver 50b mk 2 cover/caseing?

I have an old glow worm mk 2 and have had it disconected as the engineer reckons its unsafe because when theweather was really windy my boiler used to turnoff, he then said it wasbecause when I had my kitchen fitted the guy didnt fit it back properly and I need either nw boiler cover/caseing or bracket.
Havt a clue were to get these items from. its so annoying as the boiler was working fine really.