How can you install games in your mobile SGH-X820

This phone by Samsung allows the user to simply install software on it by bluetooth. The user must download *.jar and *.jad files on the phone and then in "My Files" -> "Other files" choose a file with *.jad extension to install software. You have to unlock Java install first. To do this type *#9998*52824678255# (it is easier to remember its *#9998*javainstall#). Also a possible way to install software is by paying for it and downloading it with the phone itself.