Help installing mysql 5.1.40 on my ubuntu plz

[killerblack]

Hi there
I,m reading the book called "build ur own database drive web site with php and mysql 4th edition"
trying to install mysql database manually on my ubuntu system and here is what happens.

I downloaded mysql 5.1.40 and extracted it due to the guide in the book
made a shortcut to it named "mysql" as written also
added groups and user for the mysql like in the book

root@machine:/usr/local/mysql# groupadd mysql
root@machine:/usr/local/mysql# useradd -g mysql mysql
root@machine:/usr/local/mysql# chown -R mysql .
root@machine:/usr/local/mysql# chgrp -R mysql . 

Then i have gone to mysql dir and tried to continue following the book instructions

root@machine:/usr/local/mysql# scripts/mysql_install_db --user=mysql 

and here is my own terminal code for this last step:

root@killer-desktop:/usr/local/mysql# scripts/mysql_install_db --user=mysql

FATAL ERROR: Could not find mysqld

The following directories were searched:

    /usr/libexec
    /usr/sbin
    /usr/bin

If you compiled from source, you need to run 'make install' to
copy the software into the correct location ready for operation.

If you are using a binary release, you must either be at the top
level of the extracted archive, or pass the --basedir option
pointing to that location.

root@killer-desktop:/usr/local/mysql# 

And i dont know what to do plz help me solve this problem i,m very new ubuntu user btw so plz try to be give me details as much as u can
and thanks in advance for ur help.

[killerblack]

bump
anyone??