inconsistency

I tried to get started with scala. After installing scala went to the scala ide.

1. It remains unclear what the download is: Ecplise + Scala or just a Scala Addon
   In the video that follows "gettings started" you download ecplise before scala addon. However the scala ide web page looks more like a bundle. This is really unclear.
2. The download: A zip file. ok, what shall I do with it? I guess unpacking and done. Maybe you can say this.

I would jump in and help, but my knowledge level is too low at this time to be of help.