Hi
When I first started running my HR would easily rise to over 200 bpm, it is unfortunately just a sign of poor fitness, this will improve the more fitter you become and you will find running around the 150 - 160 bpm will become the norm and even lower than that too.
Try not to run too quickly to try and keep your hr down even if you feel like you are not getting anywhere, but you won't be doing yourself any harm, your body will soon tell you to stop if its not coping.
I hope this help and keep it up, it doesn't take long to see improvements
TT