Glad to hear...
...that you liked the File Explorer articles
Windows Snap, the feature that allows you to instantly arrange windows by dragging them to the edges of the screen still works in Windows 8. Now, because Windows 8 has hot corners and edges, snapping windows with a mouse can be tricky, so I often use the shortcut keystrokes [Windows]+[Left Arrow] and [Windows]+[Right Arrow].
As far as specifying the default size and position for opening windows... Well, that has never really been a feature in the OS. although, in Windows 8, it seems that most windows will open in the same location and size that they were when you last closed them...more so than in previous versions. However, moving and resizing windows is simple enough. I wouldn't fret about it.