Another edit - the quest not showing up in the journal shouldn't affect your playthrough of the quest, but I've added a code for you just to reflect the journal change!
1. Go to your temple and then select Game Code from the menu.
2. Type "ForCowboy" (without the quotes) on the input prompt.
Should change it!
I also take it to mean that you can't find the place where the quest is supposed to lead you to? (If you need hints, let me know)