php and pg

[eluser]blic[/eluser]
Hi All,

I'm trying to get xampp working, but I'm getting the following error:
Fatal error: Call to undefined function pg_connect()

I've checked php.ini to uncomment the lines:
extension=php_pdo_pgsql.dll
extension=php_pgsql.dll
but I still don't get it to work.

I using windows 7 64bits.
I've downloaded the latest available version of Xampp for Windows: v1.7.4

Also, when I check phpinfo() I don't see postgre loaded. I've tested loading other extensions, and they work, but not the one i need.

Would anybody know how to solve this?
Thanks!