Sorry, I have a question that is probably dumb but... re: Dimension Pro 1.5

I already have it in Sonar X2, I checked and it is ver 1.5. Is the one included with X3 the same or is it VST3 or do I just need to download the expansion packs, or do I already have all that (or should I) and the loops and one shots, are they stuff that was included with X1 or X2 or are they for Addictive Drums or what? I don't want to have multiple instances of the same thing using up space.
Sorry, I realize I shoud probably know all this but I have learned to not assume anything I am not sure about. It always gets me in trouble.
Thanks for the help... Also I will read the FAQ thread. This is all probably answered.
Julien

Thanks Scook. Everyone here is just great, the users, the mods, the bakers... and now that Cakewalk is through this buyout, they are back to their old helpfulness... actually better than ever I think.
 
Thanks again!
 
Julien