Nice, would like to see more of the original look and feel. The same window style, à la original, would be nice (no title bar, good ol' page flip animation). I like how you can keep track of the pages you have going, but at the same time still miss the page flip and overall interface, and I'd be willing to sacrifice the nice new features like backgrounds and a separator control to keep track of how many pages there are. Still, this took a good while to make and is high quality.
In terms of bugs, I found just one: the minimum amount of pages is 8. Press the button to delete a page and choose to go ahead with this, then make a new page. The new page will be numbered 8 because the page count supposedly decreases, but the control doesn't remove the eighth section from it. Nonetheless, keep working on it! If you work hard enough, I'm sure the day will come when it's an exact reproduction, which I'd love :-)