I've been following along the renewed interest in this. Not sure if you've seen my post above but I think it's still valid, although I'm not 100% sure on Frodo being Steadfast anymore. The part I quoted from the beginning might just indicate foreshadowing, not necessarily Frodo's actual perspective. Although I do think his burdens are a big part of it.
I definitely like Temptation as the OS Problem though. Gandalf does recognize it at the beginning ("Don't tempt me!" he yells when Frodo offers him the Ring) but that's okay, he's wise and might be one of the rare characters who actually sees the problem as it is.
Disbelief/Faith make a good Focus & Direction, with all the concern about who they can trust (e.g. initial skepticism towards Strider), and Faith is another word for Fellowship.
Part of the reason I like Temptation so much is because it's a clear moment of Conscience that leads to the Ring's destruction: Near the top of Mount Doom, Sam is about to kill Gollum, but takes pity and spares him.
Sam's hand wavered. His mind was hot with wrath and the memory of evil.
It would be just to slay this treacherous, murderous creature, just and many
times deserved; and also it seemed the only safe thing to do. But deep in
his heart there was something that restrained him: he could not strike this
thing lying in the dust, forlorn, ruinous, utterly wretched.
And later Frodo admits it was Gollum who saved them all, and talks about forgiveness:
'Yes,' said Frodo. 'But do you remember Gandalf's words: Even Gollum
may have something yet to do? But for him, Sam, I could not have destroyed
the Ring. The Quest would have been in vain, even at the bitter end. So let
us forgive him! For the Quest is achieved, and now all is over. I am glad
you are here with me. Here at the end of all things, Sam.'
Of course these quotes are from the books ... not 100% sure the storyform is the same, though it probably is?