remind me again. what's the opening theme song? is it called My Memory, or the other one?
i have both already on my computer, but that's because i have a korean internet connection. my parents installed it in all of the computers practically. after getting it, i have this thing called soribada that is free and lets you download any song you might want. that's how we get ours.
i'm not absolutely sure, but try www.kbs.co.kr
there is an english version of the site, but i'm not guaranteeing that what they have on the korean version will be that of the same on the english.
good luck trying to find it.
if you're looking for the other song (name is in korean, don't feel like translating... sorry lol) instead of My Memory, you can find it on Windowsmedia...
hope that gave a bit of help.