For 1 & 2, as djey said, there are problems with the textures. My Zmod does not show what the problems are though. I've found it's normally with the lights.
For lights (there are 4, lgt_rl, lgt_fr, ect), make sure the textures are in this order:
1. lgt_r_off.2db (current, texture, current, modulate, uv1, clamp, clamp, wrap)
2. cubemap.2db (current, texture, constcolor, multiplyadd, autosphere, clamp, clamp, wrap) adjust the constcolor slider to make it look right in game
3. lgt_r_g.2db (current, texture, current, selectarg2, uv1, clamp, clamp, wrap) make sure the box next to this is unchecked before you export (don't know if it's important, but mine are always unchecked). This is a rbg texture that is used for when the lights come on.
4. lgt_r_on.2db (current, texture, current, add, uv1, clamp, clamp, wrap)
There is also a ws_lgt_r.2db that I think is second in line, but I don't use it. I think the properties for this is (current, texture, current, dontproduct3, uv1, clamp, clamp, wrap)
Replace the _r_ with _f_ for the front.