I was confused by last night's finale (although that could've been the wine). It was clearer after watching "confidential" on BBC 3, so I watched the episode again.
But I have lingering questions:

That instruction to Martha must've contained alot of information for her to organise all that (not believable)

The TARDIS has a forcefield which extends to protect those immediately outside it (Series 1 Ep 13) so a ship crashing through will have to explained.

If Jack is actually "The Face of Bo" then what happened to his body, why was he later in a tank of liquid, and why did his head become so big and ugly?

The Master's ring would've melted during his cremation.

I was just getting used to Martha, why did she have to go, did the BBC cancel her contract?