Old version of GD or a patch

Hi all Does anyone know where i can pick up an old version of GD? preferably V 1.5 - 1.6.2 . I'm planning to use it locally (i don't run a hosting service, i simply want to perform operations on GIF files for local use) and i'm based in Australia - from what i've read so far the problems with the GIF patent don't apply in Australia? I've also downloaded a version of php_gd.dll from this site http://php.weblogs.com/php_gd but when i use it tells me there's an error in the DLL Any help i can get will be much appreciated