I have write a redmine's toturial (pdf, 47pages) (only in Chinese), welcome to download
Since my company's work is too heavy, I don't have enough time to write an English version of that tutorial.
And I have seen that there are many Chinese people who are using redmine, so I think this Chinese tutorial may help.
The current download url is: http://184.108.40.206:5000/attachments/download/95/ezwork_redmine_%E4%BD%BF%E7%94%A8%E4%BB%8B%E7%BB%8D2008-09-10.pdf
If anyone think it's better to upload it to this server, please tell me and I will upload it later.