i would love to help, but there is basically not much to work with here.
please ask the question a little better as i am under the impression that you want to know what the advantages of windows Vista 7. First of all, there is no such thing as Windows Vista 7, there is windows Vista and Windows 7.
Did you want to know the advantages between windows 7 & Windows Vista? If so, please let us know what you use the PC for.