Change Default Path Of User Profile Personal Files And Program Installation

I have a computer with three partitions, the first with 100GB exclusively to Windows 7 (already installed), a partition for applications and another partition for personal files (photos, text, music, movies, etc.). I wonder how to configure the location of "My Documents", so that all users have only their personal files on drive of personal files. In Windows Explorer changed in each of the users the location of the Documents, Music, Video and Pictures.

- After changed the location of the folders above, there is still the same folders in C:users , and there are user settings that are there defined, eg Desktop, in C:Users. Is there any way to move all settings and folders to another drive?
- Is there any way to do this operation automatic? for future users I will have to repeat the same operation, how can I indicate that all future users will have their settings and documents specified in this specific drive?

I installed some applications and found that some applications did not demand that the location where it was set to be installed the application, having been installed in C:users and C:Program Files, intended that all applications (except for windows and Office) were installed in drive applications. How do I specify that this is the default drive for installation applications? Keeping the installations of Windows + Office in this drive. Applications installed by the administrator are available for all users or must be given access to other users ? How done? In the drive file, which should contain the users and shared files, meant that each user only gets access their documents and shared. Where and how can make this configuration?