Oh wow Kimberly!! That ISSS progress!!! Whooot! I'm excited for you..AND Cheeko!!!
When you let him out, be sure you have the time to wait for him to go back to his cage in case you can't get him back by hand. In other words if you only have say 1/2 hr or so before you have to go somewhere..it wouldn't be a good time for a first outing. You don't want to rush him.
Ooooh he's gonna LOVE flying!! And like illusive said, he might have a crash n burn or 2 before he finds his wings and learns how to turn and land etc., so try not to panic and run to the rescue. Just sit back and enjoy his first flying experiences.