Hi,
you can scale a texture by using the "UV scale" properties of the Material tag. This setting in the Matrial tag works allways. If you either use already assigned UV coords or if you use a texture projection in the UVTag like spherical mapping.
But you can also use the "scale U" and "scale V" properties of the UV Tag. But these properties have only an effect during the assignment of UV coords. For example when you assign sperical UV coords.
Hope that helps.
By,
Martin