From Cribs to beds

Taking my kids from the Crib to a toddler bed is harder than it was for my oldest!! URGH! Why won't they go to sleep already!!!
Its like 10:30, they use to go to sleep in their cribs at 7 pm..I'm not use to this..I had to put a baby gate up at their door so they won't come out of their room every 3 seconds! but they are standing their screaming and crying. They won't go to sleep!!! ARRHHHHGGHHHH!!!!
I so wish i didn't throw their cribs away, i could set them back up and put them in it..Sure one of my twins 'can' climb out of it but they didn't do that that often and eventually they fell asleep usually around 7:30 or 8ish or so but no, this isn't seem to be working..but I know its WAY overdue for them to be in toddler beds already, they are 2 1/2 years old afterall.
I wish God, would grant me some Peace at night, So I can go back to enjoying my quite nights watching Tv, playing on the computer, or taking a nice relaxing bath.
I hope they pass out soon, i'm getting sleepy myself.