OpenGL: texture evaluators (urgent!)

Hi, please help I'm in a hurry

Code:

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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;
}

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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);