Hi,
1) Try doing the following:
Code:
info._checkbox.uppicture('image.jpg')
info._checkbox.downpicture('image.jpg')
2) None of the collide functions account for the objects scale. So you will have to call collidebox or collidesphere with the new size.
3) The 3ds and wrl formats don't support reflection textures. You will have to manually apply the texture to the object within your script. You could also export your object to the .osg format, which supports reflection textures. The exporter is called OSGExp. The following page shows where you can download it:
http://www.worldviz.com/products/vizard/tools.html