@BALLOON
You don't think I insisted on using old OpenOffice release instead of Apache OpenOffice, do you?
AOO is not only successor of OO but has been taken over by AOO. It is still maintained on the same website, in the same shape and form. There is no difference and even application itself uses OpenOffice name almost everywhere, not Apache OpenOffice.
What you said sounds like you would say, that Youtube is no longer Youtube but there is that old one and the new one owned by Google accidentally still with the same look and feel and the same website.
I understand, that using LO is natural choice, when you have it included in distribution. This is not the case in wattOS.
Thank you both Maroman and BALLOON for your answers. You both were very helpful.