hi there,
you can download gd here
http://www.boutell.com/gd
then set the extension_dir in php.ini to the correct dir (where php_gd.dll is tored) and uncomment it remove the ";"
extension_dir= c:\php\extensions
extension = php_gd.dll
is what you should have the path is only a example edit this to the correct path for your system when you are done
<?php phpinfo();?>
if there is a gd section in the table you now have gd (voila)
cheers
Erik
