update and install a new midlet

hi i am having trouble installing a new version of my midlet from a webs erver on a s60 device. the program just opens up the web browser instead of downloading the midlet.

here is my code:

String game_url = "http://casino770.com/production_jon/jackorbetter/240x320/nokia/videoPoker.jar";

try

{

//connect and download the new version

this.platformRequest(game_url);

this.notifyDestroyed();

}

catch (IOException ex)

{

ex.printStackTrace();

}

any suggestions? the following link works on a browser

[580 byte] By [jonney69a] at [2007-11-27 5:09:18]