As PETEB says, you are kinds asking thesame question in many ways.
The only important factor to note is, is the other party insured or not. The gardai, if they attended the scene should be able to confirm this to you. Altermatively, given that you appear to have some type of injury, you will be making a claim for injury against the other driver, you will have to write to the insurer and ask if they are the insurer. if they ar enot, then your next port of call is MIBI.
Are you insured? as if you are not insured, then you have NO claim against another uninsured driver!