[Serusers] PHP warnings

Hi all,when I try to open serweb's login screen, I get the following errors: Warning: Client does not support authentication protocol requested by server; consider upgrading MySQL client in /var/www/html/serweb/serweb_2004-07-27/phplib/db_mysql.inc on line 73 Database error: pconnect(localhost, ser, $Password) failed. MySQL Error: () Session halted. When I start APACHE, I get all these warnings: PHP Warning: Function registration failed - duplicate name - mysql_connect in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_pconnect in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_close in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_select_db in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_create_db in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_drop_db in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_query in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_unbuffered_query in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_db_query in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_list_dbs in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_list_tables in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_list_fields in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_error in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_errno in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_affected_rows in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_insert_id in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_result in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_num_rows in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_num_fields in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_row in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_array in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_assoc in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_object in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_data_seek in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_lengths in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fetch_field in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_seek in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_free_result in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_name in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_table in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_len in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_type in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_field_flags in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_escape_string in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_get_client_info in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_get_host_info in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_get_proto_info in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_get_server_info in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fieldname in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fieldtable in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fieldlen in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fieldtype in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_fieldflags in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_selectdb in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_createdb in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_dropdb in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_freeresult in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_numfields in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_numrows in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_listdbs in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_listtables in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_listfields in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_db_name in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_dbname in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - mysql_tablename in Unknown on line 0 PHP Warning: mysql: Unable to register functions, unable to load in Unknown on line 0 Do you know the reason for these warnings? Do they have any relation with the error I get when trying to connect? Can you help me please? Thank you Llanos