I can't remember! I think I did a little but nothing substantial. Actually, I'm not sure where I saved the project file (my folders are a bit of a mess, especially with all the versions of the Oblivion remix saves!)
I'll take a look.
--------------------
Edit: I've found it. There have been some changes but not much in the way of progression. The timing is, as far as I can tell, correct (put it this way, it's how I like it). The second part of the melody has now been included. Unfortunately, I haven't done anything to the bass with regards to it's finished sound yet so it still sounds like a cross between a cat purring loudly and a Harley!
Link to Version 4
I've kinda lost my love for the Doctor Who theme for the moment so you might have to wait until series 3 before I get in the right place again.
We'll just have to see how it goes.