Copy the contents of the downloaded zip file to where you have installed the game.
When you start a new game, the first maps will show up in the “Home Cooked Levels” episode, named: “JJ2-TV A Teknősök Városa”.

1. Carrot Ville (2) (boss)
The evil turtle and his minions has invaded the home of the rabbits, Jazz must fight his way through their ranks.

2. Only Tarzan’s Missing (3)
Turtle Town is on an another continent, so Jazz must make his way to the nearest dock, and that takes him through the jungle.

3. The Nautilus is Sinking! (4)
Jazz’s ship wrecks on a spooky island, he must escape from the sinking ship.

4. Haunted Town (5) (boss)
The haunted town is filled with the restless. Jazz cannot leave until he defeats the devil.

5. The Titanic is Sinking! (1)
Jazz is out of luck again, it’s the second ship that sinks under him, but luckily he’s not too far from the shores.

6. Suburbs (3) (boss)
Getting ashore, Jazz finds himself in the suburbs. He must now make his way downtown.

7. Turtle Town (3) (boss)
Jazz has finally arrived in Turtle Town, his goal is to defeat the turtle boss and save Eva.

(The numbers after each title are my personal valuations of those levels: 3 is OK, 5 is best and 1 is worst. Of course this is highly subjective, and relative.)