install dbdesigner

wget http://213.115.162.124/external/DBDesigner4/DBDesigner4.0.5.6_Setup.exe

check their site for the latest one http://fabforce.net/downloads.php

then install wine

sudo apt-get -Y wine

because the windows version is better than the linux version

then install dbdesigner through wine

wine DBDesigner4.0.5.6_Setup.exe

type this to run the app

cd ~/.wine/drive_c/Program Files/fabFORCE
wine DBDesigner4.exe

from: http://21croissants.blogspot.com/2006/12/dbdesigner-4-on-ubuntu-dbdesigner-4-on.html