DDS file con't modify

when i convert dds file ti JPG and edit it after that i convert JPG to DDS
again i got background back color, how to modify DDS with out background
or how to make DDS file transparent background same befor modify,
i use photoshop and saved with alpha chanel but not work.

please guid to mod DDS file, and i was wonder the original dds file from korean
that make from what a software ? , illustrator ?

Any idia please share.
:handsdown:

Alpha channels...
[Only registered and activated users can see links. Click Here To Register...]
Credits to Tomik!

why u all convert wtf just open with gimp and save in JPG for transperent save in .PNG modifie and save back to DDS its not so hard.With .PNG u dont have background color transperent like original DD and u can edit it in PS