How to translate existing content from English to Chinees?

[akath]

Hello:
I am new to Drupal. My project need to convert a site built in English with Drupal 5.8 (with PHP5) to Chinese.   I could convert the interface, but not content (mostly blogs written in English). I tried i18n_auto and gtrans both modules with supportive module, but didn't get desire result.
Any help will be highly appreciated.

Regards,
Aruna