Thanks peteb, I really wasn't clear on that point. The incident, in relation to who I should claim from, is still unclear to me as the accident was complicated (see earlier posts and photo of scene)
Do I claim from my own insurance, do I claim on the third party insurance of the stolen car (as peteb mentions) and do I also claim from the additional out of pocket expenses (devaluation of the new car, car rental in excess of the 5 days my insurance company will pay) from the MIBI as Ravima indicated.
All of the responses in this Forum have helped me greatly. I'd really appreciate this final steer.