No problems :)
Ah, there was a save&scores button, I didn't even see that
About the speeds - I don't think there is a huge difference between the hostings, in the end the game is played locally isn't it? Only the scores are loaded to and from the server. Still, alright then, if that was a conscious decision. Well, I don't even remember when was the last time I played tile-based games with fixed movement, so maybe for this genre the acceptable range of speed is a bit different.
Well, you're not allowed to edit the game in the context of the jam ratings - you need to initially have your entry submitted for others to look at what you achieved in this time, but who's to say you can't use what you already developed to make something outside of this scope, for youself, your own pleasure? It's still your game :)