Installing Drupal

I'm just update my drupal by CVS and when I tri to update my database I receive :

warning: pg_query() [function.pg-query]: Query failed: ERREUR: syntax error sur ou prés de '(' at character 36 in /var/www/drupal/includes/database.pgsql.inc on line 45.

Warning: pg_query() [function.pg-query]: Query failed: ERREUR: syntax error sur ou prés de 'variable' at character 13 in /var/www/drupal/includes/database.pgsql.inc on line 45

Hello all,

I'm new drupal french user. I've installed drupal by cvs with success, but I receive errors when I tri to access to the forum administration form :

warning: pg_query() [function.pg-query]: Query failed: ERREUR: Syntaxe en entr�e invalide pour l'entier : "" in /var/www/drupal/includes/database.pgsql.inc on line 45.

Getting this error when i open the "blocks" page.

Can't seem to figure out how to fix this. As i understand there is something wrong with MySQL db tables/structure - but my knowledge if databased too limited to be able to fix this on my own. Any idea's?

Appreciate if anyone could help, I am so new to this while trying to instal 4.6, after installed, when running the drupal, the following error :

Warning: mysql_connect(): Unknown MySQL Server Host '' (1) in /home/ccis2005/public_html/2005/includes/database.mysql.inc on line 31
Unknown MySQL Server Host '' (1)

I am trying to install Drupal 4.6 on Windows 2000 server using IIS with MySQL and PHP5.0.4 and having this issue:

Fatal error: Call to undefined function mysql_connect() in D:\Web\GAP2\drupal-4.6.0\includes\database.mysql.inc on line 31

I've read the posts and tried many different things but nothing has worked so far.

Any help on this will be greatly appreciated.

thanks,
Pants

Ok,
I'm new to Drupal and am wanting to get familiar with prior to uploading to web server.
Have XAMPP running on Win XP Home system with Drupal in subfolder.
Refer to http://drupal.org/node/21203 for some basic instructions have been using to install Drupal with XAMPP for test machine. Everything is hunky dorey until I get to #11 on that page.
I need database.sql so that I can go further in the installation. I understand that it's not part of the 4.6 download.