I have been asked to review a project. The project was started using Flash, but someone asked me if there were any other options. The Flash object displays an object with a finite number of buttons and depending on what button is pressed and in what order a finite number of messages is displayed in a designated area (not very specific huh <s>). I know I could write this stuff in ASP.NET (or PHP, ASP but think that might be overkill), but I feel Flash is probably the best option for this.
Are there any options that I might be forgetting?
This is to be displayed on a webpage and be interactive to a customer.

Any comments are appreciated.

Thanks,
Einar