OpenGL: texture evaluators (urgent!)

Hi, please help I'm in a hurry

Code:

void SurfaceMesh::pack(){
	GLfloat texturecoords[4][2];
/*...................*/

	glNewList(getListID(),GL_COMPILE);

	for(int n_pts = points.size();n_pts>2;n_pts-=2){
		/*...............*/
		glMap2f(GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 2,  0.0, 1.0, 6, 2,  &ctrlpoints[0][0]);
		glMap2f(GL_MAP2_NORMAL,   0.0, 1.0, 3, 2,  0.0, 1.0, 6, 2,  &nrmlcompon[0][0]);
		if(_texture){
			glBindTexture(GL_TEXTURE_2D, _texture->getTextID());
			glMap2f(GL_MAP2_TEXTURE_COORD_2,  0.0, 1.0, 4, 2,  0.0 , 1.0, 2, 2,  &texturecoords[0][0]);
		}else
			glMap2f(GL_MAP2_COLOR_4,  0.0, 1.0, 4, 2,  0.0, 1.0, 8, 2,  &colrpoints[0][0]);

		glEnable(GL_MAP2_VERTEX_3);
		glEnable(GL_MAP2_NORMAL);
		glEnable(GL_MAP2_COLOR_4);
		glEnable(GL_MAP2_TEXTURE_COORD_2);
		int evx, evz;
/*................*/
		glMapGrid2f(evx, 0.0,1.0, evz, 0.0,1.0);		
		glEvalMesh2(GL_FILL, 0,evx, 0,evz);
	}
	
	glEndList();
	packed = true;
}

I have a class SurfaceMesh for managing a surface, you can see an excert of the pack function which calculates normals, extra geometry, evaluators and places it in a glList.
Everything in the code is working fine, except for one detail.
the glMap2f(...) function. How can I bind the evaluator to a specific texture?? That is, I have a Texture class that loads a texture file to memory, and gets a valid number to identify it self. Then When I call Map, a certain texture with certain id number must be bound to that glMap function calling. But it seems not to be working

Thanks in advance!
glMap2{fd}(GLenum target, TYPEu1, TYPEu2, GLint ustride, GLint uorder, TYPEv1, TYPEv2, GLint vstride, GLint vorder, TYPE points);