Here is a way to make Vista look & behave like Windows 7, based on 3rd party applications, modifications & resources.
1.
Windows 7 Boot Screen by Vishal Gupta.
2.
Logon Screen by pugalengthi.
3. Theme -
Windows 7 Vista Style FINAL by ~giannisgx89
4. Wallpaper -
Official PDC Blue Wally
5. Taskbar: Using
Taskbar Iconizer or
EnhanceMyVista freeware.
6.
Right Click Menu hack using registry trick from AskVG.com.
7.
Aero Snap
8.
Aero Shake. More
here.
9.
Win 7 Calculator.
10. As Windows 7 won't be featuring a 'Sidebar' you can simply drag your gadgets out of the sidebar then:
- Right click on the Sidebar.
- Select Close Sidebar.
Now you won't have the sidebar obstructing your desktop wallpaper.
For Screen-shots, you may check out:
Make Vista Look & Behave Like Windows 7 | I'm Just Being Manan
UPDATE:
11) Aero Peek comes to Vista/XP:
Download
Creator page