I must note that I am new to GIS so pleas be understanding.

PROBLEM:

I have a raster file in this case it is an ortomap: http://imageshack.us/photo/my-images/703/ortofoto1.jpg/

and it has JGW (World File)

0.683772574816354
0.000000000000000
0.000000000000000
-0.683739485024190
395057.114562241190000
741149.458682749890000

Now I want to use GDAL to apply the jpg+jgw to this aerial image:

http://imageshack.us/photo/my-images/703/ortofoto1.jpg/

so that it can have the coordinates according to the jgw file of the jpg ortomap.

1. What gdal console commands should I commit on those 3 files? (I was thinking gdal_translate/gdalwarp maybe)

2. Can i later use those two jpg files to create a 6 band IMG file with the jgw originated coordinates?