Is it possible to install Pocket MSN ?

I just received the AT&T Tile (HTC TyTN II) with Windows Mobile 6. There's quite a bit of work that I had to do to the phone to get it to my liking.  AT&T seems to have gone th way of so many desktop computer vendors by preloading the phone with trials of a lot of [unwanted] applications with no clear way of removing them.  I managed to find where these trials were stored on the file system and have removed most of them along with reorganizing the Programs menu to a more acceptable state.  I also manage to get the PTT button mapped back to the Voice Recorder application and Voice Command.

Pocket MSN is altogether missing and has been replaced with an AT&T app for instant messaging. I've removed the AT&T application and have for now replaced it with Palringo. But I would really like to have Pocket MSN on the device.  Is there any way of downloading and installing Pocket MSN or is it only available as a preloaded application.