Hey Peeps,
Sooo, I slightly broke the frontend so it thought there weren't any save games and wouldn't let you contiune. Or at least it would only let you if you had a save game in the last slot.
Unfortunately I compounded my mistake by not testing a fresh install before uploading the build which, for someone who spent so long in QA, is just embarassing.
You have my humble apoligies and it's all working now.