Much as I agree with both Scott and SirAGE, they are commenting both on the preview which has absolutely nothing to do with the actual building of the website in visual which you cannot do with the preview window, and the preview window new features will not help anyone that doesn't know HTML...
Fine tuning is about all most that don't know HTML can do with code, but building is not the same for those that don't have that knowledge to start with.
Roben, you need to change to Visual Site Designer as that's what that was created for. Basically it's a replacement and more for the HTML Editor visual tab and although it doesn't have the ability for the fine tuning that you did in the HTML Editor, in most cases you don't ever need that. It can accept outside code for HTML and Javascript and more and has all the features you may need for building a site.
Give VSD a trial run, I think it's 30 days for that one, but I don't recall off hand and see if that will help. It has a lot more features than the visual tab of the HTML Editor ever had and then some.
Good luck with it and although I'm sorry that you're upset, I'm very much not sorry that the visual tab is gone from the HTML Editor. Those of us that code our sites (which is what the HTML Editor is for) have a lot more new features because of that being removed so it was a most welcome change to most users.