chinese & compose characters

Hi,
I'm very fresh beginner with xemacs. I tried gnu too, but xemacs rules ;-).
I want write my MA thesis in xemacs, and because I am doing chinese 
linguistics and I have to type a lot of uncommon characters. I have 
three problems.

1. IPA. I C-x C-m C-\  change to ipa, but when I type I get this error: 
(2) (font/warning) Unable to instantiate font for face    underline, 
charset ipa
I have debian/linux so I have instaled package xfonts-tipa, but the 
problem remained. What shall I do?
When I look at ipa table in Show character table, it shows no fonts 
(only tildas ~) and it says:
(3) (error/warning) Error in 'post-command-hook' (setting hook to nil) : 
(wrong-type-argument stringp nil)

2. I want to input those characters I find in Edit > Mule > Show 
character table > 94 character set > Pinyin-Zhuyin
For me only the latin+diacritics are important. How do I input them.

3. I type in czech input. I can compose characters like n+caron. But 
when I want palatalized t od d (composed actually as t+caron, d+caron) 
it really realizes as caron, but it should be something like acute or 
apostrophe. I char table it shows caron above these letters. Is there 
any way to change it. I suppose, this not possible (at least in some 
easy way - ie I could do it ;-))

Thanks a lot for help, I am actually becoming addicted to xemacs, 
complicated , but marvelous, Thanks.
Petr