Don't worry buddy! Just fill in all the required information. I am sure that they won't consider you inadequate for the job because of a coma or because you were no able to insert NA in their form. I spend a really loooong time between yesterday and today filling their form too!!!
Had even to do it as Cadet Pilot because there is no other way within their web page for an experienced pilot to apply as FO to the company... and as far as I am concerned that is the only way to apply .
If they choose you for an interview it will be because of your experience and maybe because the guy or girl who reads your name likes it!!! and decides to drop you a line or give you a call!!
Good luck man!