The video tutorial comes along with English and German subtitles. It also allows you to translate one of these into your own language using the Translation feature.
You have to download the Photoshop DDS plug-ins here: http://developer.nvidia.com/object/photoshop_dds_plugins.html
Click on Download Current Version to download the file and then install it.
If your Photoshop is in English the installer might have chosen the right destination in the Photoshop directory for the plug-ins. If it’s not then you have to translate the folders name to know where to move the plug-ins to. The correct folder should be C:\Program Files\Adobe\Adobe Photoshop CSX\plug-ins\file format
Please use the TSR Forums for getting help regarding this tutorial.