The Giving And The Receiving

There is a debate among the commentators as to how to understand the order of the parsha.  It would seem that the beginning of our parsha, Mishpatim follows after kabbalas hatorah.  However, at the end of the parsha in Ch. 24 it seems to be going back to the scene of mattan torah?  Rashi says that the end of our parsha actually preceds the events of mattan torah and took place on the 4^th of siyvan.  The Even Ezra and Ramban disagree and learn everything is consistent, the events at the end of the parsha follow after the mishpatim and it was a reaffirming of their acceptance.  Rashi is forced to take his approach because he assumes it makes more sense for the account of the korbanot necessary for the gerus process took place before mattan torah.  However, why did the Torah place these events out of order according to Rashi?  And what is the nature of this this additional acceptance according to the Ramban? 

Parshas Yisro describes Hashem giving the Torah to Klal Yisroel.  It was an awesome, scary event where God reveals himself to an entire nation.  The Torah continues by telling us (some of) the other commandments given at that time.  The end of Mishpatim is discussing a different aspect of the kabbalas hatorah.  It is discussing the nation’s willing acceptance of the Torah.  It is referring to the nation’s acceptance of a bris with Hashem (see Brisker Rav.)  That is why according to Rashi the parshios are out of order and that is the additional acceptance in the opinion of the Ramban (based upon Likutay sichos volume 26.)