I have two problems, one:

When I play the game a lot of the textures on models are transparent, the attached image shows that you can see through the models. How do you fix that?

Two: The menu has this weird thing that when you click an something like "Options" or something the old menu stays in the background when the new options come up eventually it becomes unreadable, even the mouse cursor shows a trail of where its been. I can't get an image of this when I screenshot it shows up as the normal menu.

same problem.. :( does anyone know a possible fix?

Possibly (probably) a problem with modern DirectX/modern hardware. I'm currently working on an overhaul that will upgrade the graphics, but for now I'd suggest using dgVoodoo2, a program I am hoping to use in my overhaul. You can find it here: http://dege.freeweb.hu/dgVoodoo2/dgVoodoo2.html. It is a DirectX 11 wrapper/emulator for old DX8 games.
If you want, I can give you a step by step guide.