Aqua-Soft ForumsGuys
I have released an Icon Pack for Windows XP recently, which will change XP default icons with Windows Vista icons. So you’ll experience the high-resolution Vista icons in XP. 
How To Use:
1. Download the RAR file and then extract it.
2. You’ll get a folder containing the icon pack files.
3. Download “Stardock Icon Packager” from here:
http://www.stardock.com/products/iconpackager/
4. Now open the “VistaVG.iconpackage” in Icon Packager and apply it.