On Mintpal: We can't, as the development team, contact them once every hour to ask for progress when they've already told us that they're working on it. What all of us as individuals can do is to ask them on Twitter.
I'm personally in no rush to get on Mintpal or Cryptsy ASAP. We are on every other exchange and we have a healthy volume at a stable price and I wouldn't mind if we kept it like this for even a few days. I understand that the situation might not be ideal especially if you have coins at Cryptsy, but again, what you can do is ask them on Twitter, they will follow where volume leads.
If I download the new wallet, will my coins that have been deposited from the exchange (on the 1st) still stake on the 14th(ish)?
Thanks.
Yes they will stake 2 weeks after their last transaction regardless of wallet version.