Which of these four files should I download?

• Usually you just need the jar file. To install on some mobiles, you will also need the jad file, placed in the same folder as the jar file.
• Only for BlackBerry devices you need to download the cod file. To install on some BlackBerries, you will also need the alx file, placed in the same folder as the jar file.
• After installation the application will run in trial mode. In order to switch to full mode you need to enter the registration number which you can buy on our website.