installing Postgresql 8.3.0 tar

I have the directory postgresql 8.3.0 downloaded from internet..... I am new to postgresql.....I   want to know how to install.........
my foldder postgresql 8.3.0 contains  three subfolders backend, postgresql 8.3.0 and src...
I have operating system windows Vista in my computer
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earth man2Commented:
The simplest answer to your question is
Install Linux on your computer or download the Windows Binary Distribution.
Go to:
There you can download which has Windows binary installer. Then it's as simple as executing the installer. You can follow the installation instructions at

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