Problem DDS/DXT# how to make careful textur? help

[Devolick]

:-\ Hi guys, i have problem with texrute , i think i doing somethink wrong ... so looking 1 nomber its original RADAR from l2 texture i want doing my texture Radar ( nomber 2,3 my radar ), but !If i make white somethink i dont have problem, but if i make color texture in photoshop it Ctrl+click and make aplha chanel save it DXT#( in original want DTX3), put it in texture and open it with aplha chanel ... i having somethink like a white little pixels (