With Nokia Ovi Suite you can install phone applications. To start the application installation:
double-click the application's installation file and click OK in the dialogue that opens. The supported installation file types for phone applications are .sis, .sisx, .jar, .n-gage, .wgz and Nokia Themes.
If you are starting the installation from the internet, click the application’s download link, and choose to open it with Nokia Ovi Suite in the dialogue that follows.