Be Careful!
I wouldn't put your application in until the opening date as there is a history if these applications going 'missing'. I put mine in a day or so early for the BA Cityflyer scheme and never recieved a reply and had to phone FTE.
Now that you've done it i would leave it but keep your eyes on your inbox and if it gets close tothe clsing date and you've heard nothing either way, then chase it with FTE.
Just so you're all aware!