You need:

1. Motorola Phone
2. Data-Cable
3. MotoMidMan (The latest version 0.70 HERE )
4. A Java-Game or Application =)

Process of installing:

1. Run MotoMidMan
2. Connect phone
3. Wait some time while programme recieve list of games of your phone
4. Choose Phone or Trans
5. Push button ”Install using *.jad of *.jar
6. Select game file
7. Ckick OK
8. After game will installed to your it is reccomended to RESTART it
9. Enjoy =)

P.S I hope you know, how to change programme language, if you need that!