HOWTO Make Ubuntu Look Like Windows Vista
Download Microsoft Segoe UI Font from here
Unzip the downloaded archive and place the two .ttf files in your .fonts directory.
You can find it in your user folder. /home/$USERNAME/.fonts/
For example: /home/ruchi/.fonts
If the directory .fonts does not exist, create it.
Download Aero-clone theme
Download the Aero-clone theme from Gnome-look.org or here
Install the Beryl and GTK theme as usual
Download the nuoveXT-aero iconset
Download the nuoveXT-aero iconset from here
Change the gnome-panel size to 32px height.For this you need to Right-click on the gnome panel (the taskbar at the top of the screen) select properties
Change the size to 32 and click on close
Vista start-button screenlet
Download and install "Desktop Screenlets" and you can download from here
Install the "orb" screenlet (The orb screenlet is included in the .tar.gz from gnome-look.org) or from here .Place the orb screenlet above the main-menu button and lock the position.
If you want to make the experience complete download some Vista wallpapers for your desktop.
Install cursor to aero-drop
Download aero-drop (Aero Mouse Cursor with Drop Shadow) from here
Extract the archive and move the folder to ~/.icons/ .
Go to System---> Preferences---> Appearance---> Theme---> Customize---> Pointer---> aero-drop---> Close---> Close.
Then, go to ccsm (if you don't have it install it with "sudo apt-get install compizconfig-settings-manager").
General Options---> Cursor theme---> aero-drop
That's it you are ready for vista look for your ubuntu desktop