Is Arthur the answer?... I just couldn't find the kind of encryption you were talking about. (Perhaps reveal it later?)
I figured out the code but since I couldn't get all the letters (And some of the ones I DID find were wrong) it didn't go so smoothly.
First, congratulations to 30Flames3 for guessing the correct answer!

As I stated above, I failed to account for the ways different browsers display results.

In fact, merely resizing the browser window can give different results!

The way it was
supposed to work is this:
224503 1 1 5 5
should have pointed you to Post # 224503 Paragraph 1 Line 1 5th word 5th letter.
When I originally did this in Firefox, full screen the result was O.
The clue was supposed to spell out o u r k i n g which of course, breaks down to "our king" which should have led you to guess Arthur!
