WorldCraft does have a very useful feature for obtaining textures, called MakeTex. This allows WorldCraft to extract textures from Quake the first time that you use it and then to save it as a *.wad file. To use the Quake textures with BSP it is necessary to download Quake101.wad separately.
Thanks for trying to help me.
I find some links for quake101.wad on cdrom.com but they seems to be "obsolete".
In the other hand I write to Vrajgh, the author from the other post of you, and now... Hope for an answer.
Best regards,
Ciprian