To upload the patch to your decoder, you need an application called loader. The loader is contained in the same zipped folder you dowloaded from satdw.com.
Make sure you unzip that folder first.
The loader is identified by a red icon, and it is called Simpleupload. Double click on the application file, then click on start, and the upload will start. Wait until you receive a "success" message on your PC.
Hope it helps