OK , I looked around and it looks like vista has issuse with Postgres. but the new version 8.3 now installing.
I downloaded 8.3
[url]postgres[/url]http://www.postgresqlforums.com/forums/viewtopic.php?f=41&t=191&p=679&hilit=vista+install#p679 forum.
[quotemql]Vista will be supported in the 8.3 release natively, but there are a few workarounds suggested. The bug is documented at
http://pgfoundry.org/tracker/index.php? ... 7&atid=126, and there is some suggestions reported in the bug.
I was able to find this workaround, which seems to be fairly straightforward:
1. Start/All Programs/Accessories
2. Right-click on Command Prompt
3. Select "Run as Administrator"
4. Click OK on the dialog that appears
5. cd \[The directory where you put the install files]
6. Run the installer .msi from the command line.[/quotemql]