Why can't we have more maps here?

I would like to contribute to the map portion of RC but unfortunately I need a mentor as I cannot seem to make sense of metaseqoiua and google sketchup exporter so please help and thx.

hellow. i have few text.
check it. rigidchips.orz.hm/up/src/orz18062.txt
bye

In the last few weeks I have been making a big map, and i have a few smaller maps such as a four course race track and the Disneyland Monorail Track (without Disneyland though). I will try to post them. I make all of my maps with Google Sketch Up + 3D Rad.