VERY last minute help request...

So I just started brewing a couple hours ago. Too far in now to stop.

Basically, I got the Irish Stout kit from midwestbrewers.

I don't know which of the two hops (.5 oz pellet hops and 1 oz Willamette hops) is for bittering and which is for aroma. Or if they are both bittering? I don't know when to add either.

Also, I don't know when or even if I add the gypsum that I got.

So. Any hotline help??