Please don’t cross post since you have your own topic, as to which one you download, you select the one for 5.8 and newer which is the first link. Once you have downloaded the database, use import option from the tools menu.
I wish I could tell you, our Moderators here (especially futuretech) knows more about our products and our forum policies. We are happy that our moderators take the initiative to instruct/suggest this kind of thing to Comodo customers, it actually helps us a lot to distinguish/solve reported issues. I request you not to be rude/disrespectful on this forum.