iTunes 10.5 Error- Windows Installer Package
Previously, I had iTunes on my computer, but then got rid of it because my iPod got stolen. I now have a new one, but iTunes 10.5 will not install on my computer. When I've tried to install it, right before it was done installing, an error message popped up saying, "There is a problem with the Windows Installer Package. A program required for this install to complete could not be run. Contact your support personnel or package vendor." I've looked through support topics, but cannot find the solution. Please help.
If it helps any, my computer is Windows Vista Home Premium.
Windows Vista