Freemind in Ubuntu [ Concept mapping ]

To automated installation, use System->Administration->Synaptic Package Manager
Type in filter: ‘freemind’ mark for installation and Apply.

To do it manual:
Download from the following link , the files and follow steps primarily below.
http://sourceforge.net/project/showfiles.php?group_id=7118&package_id=161831&release_id=355162

Step #1.
saffrongeek@saffrongeek-laptop:~$ sudo gedit /etc/apt/sources.list
Add below lines to the end and save.
deb http://archive.ubuntu.com/ubuntu/ dapper main
deb http://archive.ubuntu.com/ubuntu/ dapper universe
deb http://archive.ubuntu.com/ubuntu/ dapper multiverse

Step #2.
saffrongeek@saffrongeek-laptop:~$ sudo apt-get install libcommons-lang-java
Reading package lists… Done
Building dependency tree
Reading state information… Done
libcommons-lang-java is already the newest version.
libcommons-lang-java set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 52 not upgraded.
saffrongeek@saffrongeek-laptop:~$

Step #3.
saffrongeek@saffrongeek-laptop:~$ sudo apt-get install librelaxng-datatype-java

Step#4.
saffrongeek@saffrongeek-laptop:~/Desktop$ sudo dpkg -i libforms-java_1.0.5-2_all.deb

Step #5.
saffrongeek@saffrongeek-laptop:~/Desktop$ sudo dpkg -i freemind_0.8.0-1_all.deb

Step #6.
Test installation :
saffrongeek@saffrongeek-laptop:~/Desktop$ /usr/share/freemind/freemind.sh

It works fine.

Installing plugins:
saffrongeek@saffrongeek-laptop:~/Desktop$ sudo apt-get install rhino libbsf-java
Depends: libjaxp1.2-java
Open Synaptic Package Manager from System -> Administration and type libjaxp. In mine , it listed libjaxp1.3-java. Apply.
saffrongeek@saffrongeek-laptop:~/Desktop$ sudo apt-get install j2re1.4 libjcalendar-java