The tutorial mainly focus on the settings you have to do in OpenOffice if you choose to download SENIB.zip or SENIB.exe. In the file SENIBwOO.exe all settings are already done, so if you download that file it's not so important to watch this tutorial.
After this tutorial was created newer versions of Apache OpenOffice has been released. Starting from version 4.1.2 comments in cells are not shown when the mouse hovers over them. This is because a changed setting. This can be fixed by selecting the checkbox “Tips” on the menu Tools – Options – OpenOffice – General. See picture below.