Yes, but each post is numbered instead, in the blue box bottom right, you can navigate to any post directly, so if your useful info is in post 254 then you can jump straight there or you can bookmark the post of interest.
Not everyone can be pleased all the time i'm afraid, we have had 3 types of software (including this one) since 1998. The last change was over 3 years ago - I know it doesn't seem that long.
I presented many reasons for this move before I did it, but mainly software gets outdated or clumsy over time. Technology changes as well. With the advent of our friend Facebook, normal sites have to keep up with modern trends to stay current and attract a wider audience. Security is also a big concern. This software is more secure than the last!
I can't see too much blank space, although if I maximise my window on my 1920x1080 screen there is a big margin left and right, apart from that I don't feel it's too bad without making the screen even busier.
I hope you come to like the new software - I spent a lot of time considering what was the best solution that will grow with the great community that is ACC!