みなさんすいません　質問の説明が悪く申し訳ございませんでした。

mysql4.0.20を使用しております
OSは、TurboLinux　Server10を使用しております。
my.cnfは、下記に記載しました。

SQL文でselect * from tantou order by yomi ASCで実行しましたら
YOMIをキーとしてあいうえお順に並び替えをしました所
あいうえお順に並び替えが出来ませんでした。
例として下記の（例１）データを入力しましてSQL文を実行したら
（例２）の様な結果がでました。
文章の書き方が悪いかも知れませんが、申し訳ございませんが
お力添え宜しくお願いいたします。

下記の様にデータを入力しまして
（例１）
データ
-------------------------------------------
ID  |  NAME       | YOMI                 | NENREI
-------------------------------------------
1  |済生　太郎　| さいせい　たろう    |25
2  |森園　一郎　| もりぞの　いちろう |32
3  |伊達　桜子　| だて　さくらこ        |22
4  |若松　恵子　| わかまつ　けいこ  |26
5  |有村　公二　| ありむら　こうじ    |36
--------------------------------------------

select * from tantou order by yomi ASCを実行しました結果になります。
（例２）
-------------------------------------------
ID  |  NAME       | YOMI                 | NENREI
-------------------------------------------
2  |森園　一郎　| もりぞの　いちろう |32
3  |伊達　桜子　| だて　さくらこ        |22
4  |若松　恵子　| わかまつ　けいこ  |26
5  |有村　公二　| ありむら　こうじ    |36
1  |済生　太郎　| さいせい　たろう    |25
------------------------------------------


--------------my.cnf----------------------------------------------------------
# Example mysql config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# a important part and systems up to 128M very MySQL is used together with
# other programs (like a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /var/lib/mysql) or
# ~/.my.cnf to set user-specific options.
#
# One can in this file use all long options that the program supports.
# If you want to know which options a program support, run the program
# with --help option.

# The following options will be passed to all MySQL clients
[client]
#password       = your_password
port            = 3306
socket          = /var/lib/mysql/mysql.sock

# Here follows entries for some specific programs

# The MySQL server
[mysqld]
datadir         = /var/lib/mysql
port            = 3306
socket          = /var/lib/mysql/mysql.sock
skip-locking
skip-innodb
set-variable    = key_buffer=16M
set-variable    = max_allowed_packet=1M
set-variable    = table_cache=64
set-variable    = sort_buffer=512K
set-variable    = net_buffer_length=8K
set-variable    = myisam_sort_buffer_size=8M
log-bin
server-id       = 1

# language
#language=/usr/share/mysql/japanese
#language=/usr/share/mysql/korean
#language=/usr/share/mysql/czech
#default-character-set=euc

# Point the following paths to different dedicated disks
#tmpdir         = /tmp/
#log-update     = /path-to-dedicated-directory/hostname

# Uncomment the following if you are using BDB tables
#set-variable   = bdb_cache_size=4M
#set-variable   = bdb_max_lock=10000

# Uncomment the following if you are using Innobase tables
#innodb_data_file_path = ibdata1:400M
#innodb_data_home_dir = /var/lib/mysql/
#innodb_log_group_home_dir = /var/lib/mysql/
#innodb_log_arch_dir = /var/lib/mysql/
#set-variable = innodb_mirrored_log_groups=1
#set-variable = innodb_log_files_in_group=3
#set-variable = innodb_log_file_size=5M
#set-variable = innodb_log_buffer_size=8M
#innodb_flush_log_at_trx_commit=1
#innodb_log_archive=0
#set-variable = innodb_buffer_pool_size=16M
#set-variable = innodb_additional_mem_pool_size=2M
#set-variable = innodb_file_io_threads=4
#set-variable = innodb_lock_wait_timeout=50

[mysqldump]
quick
set-variable    = max_allowed_packet=16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[isamchk]
set-variable    = key_buffer=20M
set-variable    = sort_buffer=20M
set-variable    = read_buffer=2M
set-variable    = write_buffer=2M

[myisamchk]
set-variable    = key_buffer=20M
set-variable    = sort_buffer=20M
set-variable    = read_buffer=2M
set-variable    = write_buffer=2M

[mysqlhotcopy]
interactive-timeout

[mysql.server]
user=mysql
basedir=/var/lib

[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
---------------------------------------------------------------------

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