I downloaded the latest drupal from the cvs using the command below.
cvs -z6 -d:pserver:anonymous:firstname.lastname@example.org:/cvs/drupal checkout drupal
When I tried to install the drupal it gave me a blank page when I clicked on "Install drupal in english". I tried everything from re-downloading the code to commeting some lines in the install.inc file but all in vain but finaly I have fixed it. I know it is kinda dirty way of fixing things. I saw this page http://drupal.org/node/298391 while searching for solution. Though I did not apply the patch. I made the change in the includes/install.inc file manually.
In the function "function drupal_detect_database_types()" Replace this portion of the code.
$drivers[$file->filename] = $file->filepath;
$drivers[max(explode('/', $file, -1))] = $file;