No,it should include the original quote as well, different page makes no difference
Not that I recall, I've done it and had no issues
I'm speculating slightly here but I believe hitting the little save icon and picking Save Draft in the text area at the bottom will save the quoted posts in that thread for you to then move pages. Often enough it will do it automatically, but not necessarily if you move between pages quickly after pressing reply on a particular post.
Cheers, that seems to work
I am guessing the multi quote over pages makes use of the save draft thing . . So perhaps the inconsistency is that sometimes it doesnt save the draft over to the next page??? ... its all javascript n sometimes i notice it can be a bit slower copying in the quote, maybe you need to change pages slower