Can not type Chinese - Linux

I'm now using Ubuntu by installing it from the "Wubi".
But I got lots of problems here.

1.I use Wubi to install Ubuntu to my PC. I'm sure set traditional Chinese when
setting languages. However, after logging to the system, I found that it's a
half-Chinese-half-English environment.I cannot type Chinese at all. How can I
reset the language to Traditional Chinese though my language setting "is Engl
ish"? Or it's just a bug for Wubi?

2.After logging to PTT by PCMAN X 0.3.7, I found that every Chinese character
becomes a square that I can't understand. I can only see English alphabets wh
ich are correct. What's wrong with my PCMAN X?

3.I downloaded the "lazybuntu" from the website which was reported on the PCHOM
E magazine. However, I cannot execute it after extracting. What's the problem
?

I'm sorry for so many stupid questions. I really need your help.
Please forgive me for using English to ask these questions.
Thanks for your help. <(_ _)>


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