Here is a guide for displaying your scrambled, weird lettered and numbered Silkroad to Chinese. This is FOR VISTA ONLY, GO TO InserName's guide for XP Version.
I have included Step-By-Step including pictures to do this. I have also included a little neat tool bar that enables you to translate your english to chinese INGAME.
Let's get started, at first your launcer and ingame text is with all weird things, as you can see:

Yuck huh?
FIRST STEP- Start/Control Panel

SECOND STEP- Click on Clock, Language, and Region

THIRD STEP- Click on Regional and Language Options

FOURTH STEP- Click on Administrative Tab

FIFTH STEP- Click on Change System Locale Button

SIXTH STEP- Click on the Drop Arrow

SEVENTH STEP- Click on Chinese (PRC)

EIGHTH STEP- Click Ok and it will Prompt you to Restart, Click Restart

After you restart and start the Silkroad Launcher, Wallah, IN CHINESE!

This is the second part of this guide, translating your english text in-game to chinese text.
FIRST STEP- In the Regional Language Options You Went Previously, Click The Keyboard and Languages TAB

SECOND STEP- New Window Will Come Up, Under the General TAB, Click on the Add Button

THIRD STEP- Find Chinese (PRC) and Click on the + Sign

FOURTH STEP- Check Mark BOTH the Chinese (Simplified) Microsoft Pinyin IME AND Chinese (Simplified) US Keyboard

FIFTH STEP- Now that you have that tool bar installed, it should be at the lower right side of your tool bar.

SIXTH STEP- Now, In-game if you want to type something out in Chinese(this is why I prefer playing SRO in Windows Mode, Much More CONVENIENT) Click on the EN button and select the Chinese (PRC). While you type out something the Chinese Tool bar will pop out a little thing that has the translation for what you are typing.

SEVENTH STEP- When done typing any word, simply PRESS SPACE BAR and it will translate AUTOMATICALLY

I hope you have enjoyed this guide!