The software available from this page has been release under the GNU General Public license (GPL), version 2. For specific details of the terms of the GPL, please read the license here. For more information on the GPL, please see the Free Software Foundation.
The general idea is that the GPL allows you to take a copy of the software and pretty much do what you want with it. You are also given access to the source code. You are free to use the source code to make a new program, but the new program must also be released under the GPL. You can include parts or all of the program in your own program, as long as you distribute your program under the GPL or a compatible license.
The above programs are free software; you can redistribute them and/or modify them under the terms of the GNU General Public License, version 2, as published by the Free Software Foundation.
The programs are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA