Controls might be confusing more because there's heaps to learn straight away, ie what the controls are, what each unit does, lanes, upgrades etc. A tutorial easing you in would probably work well. (go Cat Conglomerate!)
The issue with the police not moving is caused by a bug in an old version of Flash. The fix was released approx a year ago - please download a new version of Flash from http://get.adobe.com/flashplayer/. We have uploaded a new version which checks the current Flash version.
 "GODSPEED!"){kind=icon}
 "Class 3 Outbreak"){kind=icon}
 "Help! It's the Unfinished Shadow Game"){kind=icon}
Yeah tutorial is a good idea, I'll put one together. Thanks for the feedback!