Interactive road made in Flash

Hi guys, I am looking for an interactive cartoon-like road (like the one attached) to be created in Flash, where the main image of the road stays the same but passing objects show a vehicle on the road is travelling along it. I need to be able to edit the Flash file (I have Flash CS3). I will also require template signs/billboards etc on the side of the road so I can edit them later myself. Users need to be able to click the signs and objects and a pop up should appear. The vehicle on the road should be a car, and the user's view of it should be as if they are looking at the car from above and behind it. I will need some extra features in the Flash too, such as "Play" and "Pause" to play and pause the car travelling along the road, also a navigation feature so people can see an overview of the road in birds eye view and can click back to certain parts to go to that part of the road. I know it probably sounds pretty complicated, but working in Flash myself I know this is do-able, I just don't have the skills to do it. If you have any questions please contact me. Thank you.