No, we read the post, and to us, it sounded like you downloaded the game FFVII ultima edition. Which would be a game, not a patch. Which would mean you pirated. It in no way sounds to me reading that that you only downloaded it thinking it was a patch. and just to let you know, EDITIONS are usually new versions of a game, not patches. Which would mean you just downloaded a pirate copy of the game, unless for some reason the original producer was just letting people download it for free (which i think happened at one point with a certain game i cant remember.)
And through this I personally don't believe you actually HAVE the original game as usually people download the ultima edition, find they can't use mods with it, and then go download the original version. HOWEVER this is personal opinion. I'm not trying to attack you here. In fact, you very well could have the original game for computer. However, through personal experience, as explained above, I doubt it.