http://www.silkroadforums.com/viewtopic.php?t=29432
http://www.silkroadforums.com/viewtopic.php?t=43429
Read them again carefully, it's not very complicated, specially with XVI32.
Just open your Media.pk2 file with the program and search for "Chinese" (without the quotes) in ANSI mode (If you are using XVI32, to search in ANSI mode, UNcheck the option "Unicode Latin"), You will find a line that says "Language=Chinese" Change that to "Language=English", save the file and start playing
Edit:
About your second post, be careful to not change more than necessary. You could have deleted something or added something that shouldn't have, thus damage the file. This only happens to me if, by accident i modify a line incorrectly.