If you want to get the paid version - Download NeXuS client from RSbots.net, Buy the Auto Sorc Garden Pro Auth from their website via PayPal.
If you want to get the free version - Download the RSBuddy client from RSbuddy, and Look for the Auto Sorc Garden script on their site and click "Add" or something similar to that.
Do not use RSbot(powerbot) as it is considered not safe and the scripts they have are not as good as RSBuddy's.