problems with bump mapping

Hi all, I've got problem with bump mapping. I do it according to NEHE tutorial. I've created function ( below ) to display simple wall mesh ( 4 vertices ) with bumpmap. Problem is that this texture is blended against all other surfaces, ie. ground, I don't know why. Of course in the begining is blending enabled, but I guess it is due to glTexEnvf ? And recomendation or advices? Another think I'd like to know how to do it in 1 pass. I tried do it via .. glMultiTexCoord2fARB(GL_TEXTURE2_ARB .. etc. in another texture unit. But there was problem with light, which should be enabled only on ordinary texture. ( if you've got also some links please send them ) Thanks PS.: Don't recoment me advanced techniques, like fragment shaders etc.. because I have GeForce2 with no fragment shaders.

void DrawWallBump2 (Vertex *verts,Vector2d *coords,Vertex *light,int stex)
{
	glPushAttrib (GL_LIGHTING | GL_BLEND);

	glDisable(GL_LIGHTING);
	glEnable(GL_BLEND);

	glActiveTextureARB(GL_TEXTURE0_ARB);
	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, tx.m_pTextures[stex].m_nBumpmapID );
	glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
	glTexEnvf (GL_TEXTURE_ENV, GL_COMBINE_EXT, GL_REPLACE);

	glActiveTextureARB(GL_TEXTURE1_ARB);
	glEnable(GL_TEXTURE_2D);
	glBindTexture(GL_TEXTURE_2D, tx.m_pTextures[stex].m_nLightmapID  ); // inverse bumpmap
	glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
	glTexEnvf (GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_ADD);

	// nakresli to oboje

    Vertex n,s,t,pt;
	s = verts[1] - verts[0];
	t = verts[2] - verts[1];
	n = CMath::CrossProduct (s,t);
	CMath::Normalize (&s);
	CMath::Normalize (&t);
	CMath::Normalize (&n);
  
	glBegin(GL_QUADS);

	  for (int i=0;i<4;i++)
		{
		pt = verts;
	    SetUpBumps(&n,&pt,light,&s,&t);  
		glMultiTexCoord2fARB(GL_TEXTURE0_ARB,coords.x,coords.y);
	    glMultiTexCoord2fARB(GL_TEXTURE1_ARB,coords.x+pt.x,coords.y + pt.y);
	    verts.Draw ();
		}
	 
	  glEnd();	
	  
	glActiveTextureARB(GL_TEXTURE1_ARB);
	glDisable(GL_TEXTURE_2D);
	glActiveTextureARB(GL_TEXTURE0_ARB);

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glBindTexture(GL_TEXTURE_2D,tx.m_pTextures[stex].m_nTextureID);
	glBlendFunc(GL_DST_COLOR,GL_SRC_COLOR);

	 glBegin(GL_QUADS);
	  n.Normal ();
	  for (i=0;i<4;i++)
		   {
		   glTexCoord2f(coords.x,coords.y);
		   verts.Draw ();
		   }

	 glEnd();

	glPopAttrib();
}