[$Outlaw$-BLue]

ok I'm using photoshop 7 and I have a picture created by a friend and we want it as a loading screen for a map that we are creating.. Anyway it says i need to add a alpha channel??? So I open the tga in photoshop...What do i di next to add the alpha channel, since we are on the subject what is a alpha channel? why do i need it and is it true thiers more than one alpha channel? i think i want the transparency one.

thanks in advance freak: