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.
In OpenOffice 4.1.2 comments in cells are not shown when the mouse hovers over them. This is due to a changed setting in OpenOffice. In OpenOffice 4.1.6 this setting is set back to how it should be but if you can't see the comments then this setting can be changed by selecting the checkbox “Tips” on the menu Tools – Options – OpenOffice – General. See picture below.