use my own mysql server/database/binaries

Hello,

I have a few questions is it possible to use my own mysql binaries and configuration file for AdventNet Firewall Analyzer? I always get errors when i try to use the one shipped with the installation file, my mysql data location is /data
my binaries etc are located in:
%whereis mysql
mysql: /usr/bin/mysql /usr/lib/mysql /usr/include/mysql /usr/share/mysql /usr/man/man1/mysql.1.gz /usr/share/man/man1/mysql.1.gz

i changed in setcommonenv.sh
DB_HOME=/data/mysql
DB_PORT=3306

in mysql-ds.xml i changed to:
jdbc:mysql://localhost:3306/firewall
<user-name>root</user-name>
<password></password>

which is right, i created the database firewall on my sql server, but i always get errors like Trying to start MySQL server failed or Unable to start MySQL server on port 3306. Please free the port. So baiscally i want my server to control the mysql database start/stop/etc what do i need to edit? I run Slackware 10.2 Mysql Distrib 5.0.18

Cheers
Markus