I have seen some information that pertains to lat and lon plotting in flash, but I have a bit of a different question. I need to show a map (and I'm going to modify the map based upon various variables and demographics), but I need to allow users to click on regions (this will consist of states or territories in the country) as well as other "lassoed" areas that I will define (where the user can click on a tag or the lasso to get down to that level. Each time they click the potential will be there to drill down further to deeper resolution of that defined area.
How can I go about learning how to pursue this? Are there any good resources or examples out there that show how to start and build something like this? Obviously I would prefer free resources, however if necessary is there some reasonably priced help or instruction for this?