Help Uploading maps to Garmin Street Pilot.

As the titles says, I need help in uploading a map to Garmin Street Pilot for iPhone 4, I already have it installed and working but without a map on it, and I have the map (.IMG), I was using for Garmin Mobile (Symbian and Windows Mobile). And I haven't found a way to upload it so if anyone know how or anything related to it like: that map doesn't work or something else please help me.

Thanks.

I know that you can use iFunbox.com to add/delete for iGO on the iPhone. I wonder if it will work for Garmin?

had trouble with garmin, now use tomtom

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