i downloaded a game for my BB but when i tried to load it onto the device i found out tht .ged is an unsupported format. Is there any way to convert it to a .alx???

an alx is only a description of content.
I have never heard of ged before.

It's not made for Blackberry. Here is what I found.

.GED File Extension

Game Editor Project File
File Description: Game development project created with Game Editor, a cross platform game creation program; includes game data and settings; saved along with a game folder that contains the game resources.

Game Editor can be used to develop games for Windows 95, 98, Me, NT, 2000, 2003, XP, and Vista, as well as Pocket PC, Linux, and Windows Mobile-based operating systems.

Program(s) that open ged files
Windows - Game Editor or Game Editor Professional
Linux - Game Editor