Phemonemal idea, but the execution needs work.
This is actually a great idea, and I love how the action is presented by following the panel. Still, there is a critical flaw. It's not the lack of actual animation, the rather undynamic nature of the images, or the mundane sound.
It's the lack of interactivity.
If you're going to make a Flash comic, it is impertative that the action is user controlled. By having the Flash automatically scan over the page, it makes your viewers feel as though we're watching someone else read a comic. That's not the same we're reading the comic and its stills are coming to life. Instead, it takes us out the picture completely.
A back button, a forward button, and a "panel" select screen. With these three things, you will have a winner. Now, it's just a quirky Newgrounds entry.