I usually go here for all Arkansas Events:
Play Tab to Hide and Seek a Cache
Find a geocache by State/Province
Wow. Soooo much better than my method. Glad you posted this!
My approach is to go to the "Your Profile" page (which is my default page when I log in; perhaps yours, too). On that page, on the right side, under Search Options is a link for List Newest in Arkansas. Clicking on that takes one to a list of all active caches in Arkansas, in order of the newest "Placed Dates" to the oldest (Gorilla Stash). The "newest" will always be events/CITOs within the state which have not yet occurred. Basically, a different way of getting to the same list that AFM's approach gets you to. I would say choose whichever way is easier for you.
"Wildness is a necessity." -- John Muir
"I would rather wake up in the middle of nowhere than in any city on earth." -- Steve McQueen