I'm very, very stuck. I have a horribly bugged quest, and I'm thinking the only way to fix it in my game aside from starting all over, is to set the quest stage.

In the modding forum because fishing out a quest ID is more of a modding thing, plus, the second the CS comes out, I'm totally fixing this crap >.<

Try using the help command with some string in the quest name, and the parameter 4. For example, help riften 4, or help "Thieves Guild" 4. Then look at any records starting with QUST. Use Page Up/Down to scroll through the results.