Lazy to copy all post. Please follow the below links:

Dragon Nest Open Beta Test Registration Guide (CN Server): http://forum.mmo site.com/topics/517/201007/21/73,1.html
How to Download and Install Dragon Nest(CN Server): http://forum.mmo site.com/topics/517/201007/22/76,1.html
Dragon Nest Newbie FAQ: http://forum.mmo site.com/topics/517/201001/28/4,1.html?time=1279778649

P.S I'm on CN server now. My IGN: