Installing Drupal

I know I'm revealing myself as the Newbie of Newbies here, but in a search of the documentation here and the book I'm using (Drupal 7, The Definitive Guide), I could not find a clear indication.

hello dear drupalfriends i try to do a soft-install - well a port over from a xampp-installation. i got it from a friend. So i have the files - they area allready uploaded to the database and i have the database-dump.

And i have the configuration data - all the complete information that is needed to connect to the database:

Well question where should i edit the data

DataBase name: xy
Database Username:xy
Database Password:xy

in which file should i edit the data - where do the data reside?
and besides this - the question is:

I have a great challenge completing my installation of Drupal Software on my website www.platiniumglobalventures.com/install.php , let alone accessing the Admin page.
Moreso I have tired viewing if I will see the user table to access the user name, password, and email, yet it's not there.

Pls somebody should help me. thanks

This is just a heads up for future users.
I actually figured out the solution while composing this email.

Symptom:
Had a brand new installation Drupal 7.1.0

From Appearance tab.
Clicking on the Settings for any of the themes gives something like the following:

403 Permission Denied
You do not have permission for this request /?q=admin/appearance/settings/zen

Hi, I'm getting this error while installing the database:

SQLSTATE[HY000]: General error: 1017 Can't find file: './drupal_fbt/variable.frm'

I'm running Linux

Can you help me please? Thanks

I was upgrading from 6.4 to 6.22 and everything was going well until I tried updating settings.php to go to the existing database.

I tried a fresh install of 7 on a test site directed to the same database and everything seems to be working fine.

Because the site is now down and needs to get up ASAP I am trying to reinstall a 6.4 installation and I am getting the same errors (below) as I did initially.

Any ideas?

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Warning: Unknown column 'headers' in 'field list' query: SELECT data, created, headers, expire, serialized FROM cache WHERE cid = 'variables' in /home/cornellb/public_html/testsite/includes/database.mysqli.inc on line 128