Bart's Tree House
If you finished part 1 of that quest, then just make sure you have both Lisa & Milhouse free. Lisa should prompt you with part 2 of Bart Crusoe
Forum Discussion
Check the pinned thread in the FAQ and Guides section of the forum. The thread title to look for is the Complete Walkthrough one. Scroll down and read the Bart's Treehouse part .. Be sure to look at the part just above it! I was stuck just like you and found what I was doing wrong by that thread. I refer to it A LOT.
Hope that helps. :)
Hope that helps. :)
