For someone who is new to Flash, you have a large mountain ahead of you if you want to develop the app on that website.

Tools you need are included in Adobe's Master Suite $49 a month:
Flash Professional
Photoshop
Illustrator

Beyond the tools, you will need to develop the skills to create graphics and also knowledge of how to program using variables, Arrays, Loops and conditional statements. You can subscribe to Lynda.com $25 month and start learning what you need to know.

I have been using flash for about 3years and think I have the skills to start creating a website like that. But for someone who is new, that web application is pretty robust.

It allows a customer to:
Enter a zip code to see if they are in the service area.
Choose Frame Style
Pick Materials
Colors
and in real time updates the price.

I dont know if there is any behind the scenes database programing happening... It is probably too much to chew on for a beginning developer.