Nick Szabo doesn't know how to program enough to deliver the original bitcoin source code.

We know he - Szabo, whether Satoshi or not - asked for help in realizing something a lot like Bitcoin, a short time before Bitcoin appeared. I don't rule out that he could have had some help with the coding.

But I've also not seen anything suggesting he wasn't good enough of a coder to make it himself. He has a bachelor's degree in computer science.

He probably worked with Finney who helped out.