Hey horseymad! I'll gladly help you out.

Goal 6: Back in Tome

- Find an inventor
Find Sue and talk to her. She will make you a time machine, but she needs 10 nuclear fuel rods.

- Give Sue 10 nuclear fuel rods
Remember those green glowing sticks that you see sometimes in the bayou? Yeah, it's those that you need. They can be found also in the cemetery, moon base zeta, and glasstown.
Once you have 10, talk to Sue again and give them to her.

- Find a contractor
Talk to Ewan. To build the time machine, he needs $10,000. Do jobs and save up. Then give him the cash.

After you have done those, go to the Mechanical shop where the Motocross minigame is located. Dan and Sue will be there with a big shiny time machine for you. But you still need to know what date to go to in order to stop Daddy Bigbucks evil plan.

- Find the correct date
Talk to Guiseppi Mezzoalto. He says Bigbucks went to December 31, 1870.

- Use the time machine from the highest point
Take it up to the top of Sim Tower and place it where the spaceship sculpture used to be. Then go to the first option, Dec. 31, 1870.

Once you get there, you will be greeted by... Ephraim Earl? Thats right, the living form of Earl. After some small talk he gives you Daddy B's flag that he left there. Take it back to the present day. Daddy B. is there. He informs you that his diabolical plan is in full effect and he now owns all of Miniopolis. Yeah right! You tell him otherwise and in his rage he... gets arrested. Daddy Bigbucks has been stopped and life can now go on like normal for Sim Valley residents.

Now sit back, relax and watch everyone cheer for you. You even get your own statue.

[Credit to this guide]

Hope I helped!

~Jordan