Alex wrote:There's no graphical view of how pages connect to each other, but I agree it would be a nice feature.
When you deleted Page 4, any links to that page would have been deleted. They wouldn't be magically created again by making another page called "Page 4". So that's why your links are broken. You probably just need to edit them manually.
There's no way of reordering pages yet, but that's something else that would be a good feature. The best way to request a feature is to go to http://quest.uservoice.com.
Scrolling sounds like a bug, again you can log this at http://quest.uservoice.com or alternatively you can add bugs directly to the Issue Tracker at http://quest.codeplex.com