Opengl2d3d

I have some questions regarding graphics engine.

Usually I'm testing graphics engines on my old laptop where I can see how engine works with older hardware. Torque is working fine on newest hardver, but on older not so perfect or not at all.

I believe that Torque graphics engine needs multitexturing capabilites and some others to work properly.

Although Torque needs newest hardware, it is still working with directX7?

However, Torque was not working on my laptop until I haven't changed opengl2d3d and made following change (read comment):


at opengl2d3d: fillVB(BOOL process, unsigned min, unsigned vcount):

unsigned char *tex0 = &((unsigned char *) g.m_texcoordary[0])[min*g.m_texcoordstride[0]];

/*********** check if text0 is not NULL **************/
if (tex0)
{
D3DVALUE *data = (D3DVALUE *) g.m_verts+7 + g.m_usefogary;

for (i = 0; i < vcount; ++i)
{
memcpy(data,tex0,2*sizeof(GLfloat));
tex0 += g.m_texcoordstride[0];
data += dstride;
}
}


After this small change, Torque is working, but with white textures and some other problems. Because I don't have OpenGL experience (only DirectX) my question is: what have to be done to get Torque working properly on older hardware? Is it possible?