Ok, after 3 days of reading shader manuals, reading forum, xfireing friends, etc I give up. Can someone help me with this :
I made a 24 bits TGA file in Corel photopaint of a window. Corel doesnt save alpha channels in tga, but i can make a mask. I use this simple shader :
textures/DutchHaze/asd-raam
{
qer_editorimage textures/DutchHaze/asd-raam.tga
qer_trans .6
surfaceparm trans
surfaceparm alphashadow
surfaceparm pointlight
implicitBlend -
implicitMap textures/DutchHaze/asd-raam.tga
}
When I am in radiant 1.5 its all transparent because of the qer_trans .6 . In game its still non transparent. I thought maybe the alpha channel wasnt ok for radiant, so I opened it in gimp (latest version) and saved it again. Then compiled … but no luck. Gimp sees ita s a TGA with alpha channel.
Files :
http://www.p0wnd.nl:666/temp/asd-raam.tga
http://www.p0wnd.nl:666/temp/asd-raam2.tga
Also read : http://4newbies.planetwolfenstein.gamespy.com/cmmarkers.htm 
Thanks anyway…
. Does it matter which folder its in, or is it just the implicitMask -in the shader that removes the alpha channel ?