How change city name on map ?

hi all

http://img109.imageshack.us/img109/6...0209133555.jpg

How change city name on map ?
i want change jangan to any name.. but im map
how i can do it pls ?

any one ?

media\server_dep\silkroad\textdata\textdata_object.txt

Code:

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1        SN_ZONE_22001                                                                Jangan       

---

Color Red is name

very thx bro