[asus-port] bitbake opie-image failed----file-4.20.tar.gz not found

hi aquadran,
I'm following http://www.handhelds.org/moin/moin.cgi/BuildingOpieAquadran
to build opie.
But ftp://ftp.astron.com/pub/file/file-4.20.tar.gz is gone.
I changed version from 4.20 to 4.23 under
/stuff/oe/opie/meta/packages/file, now it compiles.
I don't know if it'll work or not(still in progress……).

And another thing, I'm trying porting a Chinese input method to opie.
How should I start my work?
Can you emerge it to opie or should I submit it to somewhere else
after I finish it?
It'll be even better if you can give me some directions about
development and debug for opie.

-- 
Best regards,
ahlongxp
Software College, Northeastern University, China
ahlongxp_at_gmail.com
http://www.herofit.cn