1. Place the archive somewhere on your N900. 2. Open the terminal and navigate to the directory where the archive resides (for example "cd /home/user/MyDocs" if you placed it in the main storage). 3. Extract the archive ("tar -xf omp_xxx.tar.gz"). 4a. Navigate to the extracted directory ("cd omp_xxx") and run the installer as root ("sudo sh install_mediaplayer.sh --desktop-file"). 4b. If it doesn't work (I'm not sure if sudo is configured out of the box), try "root", then "cd /home/user/MyDocs/omp_xxx", and finally "sh install_mediaplayer.sh --desktop-file". 5. Installer tries to start the player automatically, so you should hopefully see the result right away.