Hi ALLS
because,when i apply to a ladder (whit another texture) the ladder attribute adding the 'ladder texture' ,the previous texture disappear?
how i can fix this?

I am assuming here that you built your own ladder and used some wood texture on it and then you tried to surround it with the ladder texture.

Im thinking that you have the ladder selected and you are simply replacing the texture with the ladder texture.

Leave the ladder alone and simply place the new ladder texture around it so that the two work together.

good,problem fixed.
ok map compiled,but when i start the map cod2 get me this error
attempted to overrun string in call to va ()
-.-'

Did you make a .gsc file for this map? If so, what is in it.
If not, do you have any custom .iwd files in your /main folder, if so, remove them

the gsc file go in main/maps/mp ?

Yes.

the map works

i am happy
but........the textures

Been using custom textures? If so, something went wrong there.

so i must use just originals textures?

No, you must make your custom textures correctly, because you did something wrong when making them. Go over the tutorial again and see if you've missed something.