Hi - I am running non-modified WordPress installations but they use the Spanish version which causes the checks to fail. Below is a sample from wp-includes/version.php so maybe you can have it check against the other language versions not just english. ;)
The Original Version of the file
34 */
35 $required_mysql_version = '5.0';
36
The Modified Version on your WordPress system
34 */
35 $required_mysql_version = '5.0';
36
37 $wp_local_package = 'es_ES';
38