[olaf137]

You used the wrong objectid:

Код:

TestObject = CreateObject(19449, 969.92, -1419.15, 14.26,   0.00, 0.00, 90.00);
SetObjectMaterial(TestObject, 0, 19449, "carshow_sfse", "concpanel_la", 0xFFFFFFFF);

The modelid which is used in SetObejctMaterial is the ID of the object which has the texture.
You used the same objectid. Thats why it didn't work.