Is that applicable to Vista Home Premium as well? Any comments or advice!
Yes it is.
I have 4 partitions: one for Windows, one for programs, other for setup/installers/movies/etc. and the last one, encrypted, for data and documents 
On my old system I used to separate my Programs from my windows partition.
This however, is an unnecessary step and one which I haven't done on my new system.
Why unnecessary, I can hear you ask. Well your registry is on the windows partition and some program settings on the C:\Documents and Settings\UserNameFolder\Application Data\ folder these are the links to your programs, on the second partition. So if you had a problem you would still have to restore the primary windows and secondary program partitions so they are effectively in synch.
So if you have installed, updated or tweaked any program settings in the period between the last back-up image and the crash, etc., these may not be reflected in the restoration of an image for just your primary windows partition.
I now just have the Windows primary partition, a Data partition to back-up to either 2nd HDD or external storage. If I had a lot of media files, then I would have them on their own partition, but for the small amount I have they get stored in a Media folder on the Data partition.