check where the dlls are, then put gd32.dll in the same path and remove the comment in teh php.ini file in ur server
i mean u need to include the extension in ur php.ini file there
then check the phpinfo() file and u should see the GD library support. if it is not there it is not working and configured.
moreover the versions of the dll and the php engine should be same. it is not tough as u think
cheers
kalyan