Unfortunately, I got the update today, but the game still won't load, so looks like I'll have to uninstall it.
I'll reinstall it on the offchance my game is somehow saved but, if not, I'll probably just delete it and won't bother starting again. I've spent money on building it up, and a hell of a lot of time, just for it to be lost.
Thanks to all on here though - although I've never contributed until this problem, the tips I have gained from this board have been invaluable.