>>105
The original threads are (partially, they seem to only include the "important" posts) here: http://www.geocities.co.jp/Milkyway-Aquarius/7075/trainman1.html

Fan-based translation of the whole thing is also going on here:
http://academy4.2ch.net/test/read.cgi/english/1098117242/l50

Btw, I found it funny that in the TV series they made it look like the whole story took place in one single thread.