An okeetee is a normal corn which has been selectively bred for wide black well-defined borders around it's saddle markings. They are brown/orange/red and black. An Abbotts (sp?) okeetee comes from a specific line of snakes.
With corn looks you have a variety of factors. These include: patterning (so an okeetee has the saddle, 'natural' pattern. You can also have 'motley' pattern, which means regular circles running down their back and un-checked belly, and 'striped), morph (which basically means colour scheme, so a caramel is yellow/toffee, snow is white/pink, anery is black/white/grey), and genetics (so if you have a normal corn that is 'het' for the bloodred morph it can look different to a normal corn that is not 'het' for it). If a snake is het for something then that means if you breed it to a snake which is het for the same thing, you get babies that look nothing like mum and dad.
I think when you used the word 'okeetee' you were thinking of the saddle pattern, not necessarily the colour of the snake, yes?
So if you're ever thinking of breeding in the future and want specific results, that affects your choice of snake. For example, if you want to breed Anery motleys, you'd need 2 snakes who are het anery and het motley. Then it can get fun choosing your snakes as for example if you chose an amel het anery and motley, and an anery het amel and motley, you'd get amels, anerys and snow motleys.
Head on over to the genetics sub-forum for more info, and takle the FAQ's
Good luck with your snakes!