Allons-y pour la version fran?aise ....    <img src="/images/graemlins/laugh.gif" alt="" />
Help me !  .... "Aidez-moi !"    or   "Au secours"
I am injured and need paramedic help  .... "Je suis bless? et j'ai besoin d'une assistance m?dicale"   or "je suis bless?..appelez un m?decin/les pompiers/une ambulance" (in France, firemen are generally called up for any kind of  accident to provide first aid.
I have been robbed   ..... "j'ai ?t? vol?" ... "Au voleur !!"
Can someone call police for me?  ..... "Appelez la police !!!" 
I am underattacked by terrorists !  ... I guess you meant   "I'm under attack ..." ?   "Je suis attaqu? par des terroristes !"
    
_________________________
Alain