How to remove joomla 1.5 copyright info

First:
in cpanel > filemanager

Go to the root folder Of Joomla > languages > en-GB/ en-GB.mod_footer.ini

FOOTER=Footer
FOOTER_LINE1=Copyright © %date% %sitename%. All Rights Reserved.
FOOTER_LINE2=Joomla! is Free Software released under the GNU/GPL License.
MOD_FOOTER=mod_footer
THIS MODULE SHOWS THE JOOMLA! COPYRIGHT INFORMATION=This Module shows the Joomla! Copyright information

Second:
Go to yourtemplate/index.php > bottom of page

Joomla!.
XHTML CSS