Here's a step by step guide on how i did that GOM Music Player:
1. Go to this site http://gom2.gomtv.com/release/gom_audio.htm
and download GOMAUDIOSETUP.EXE.
2. After doing the step above, go to this link http://blog.naver.com/ykcrusaderand look for Super Junior in HANGUL on the links on the left then click it.
3. After doing so, you'll be seeing the SJ skins, you can now click the links there and download the skin you like.
4. Install GOMAUDIOSETUP.EXE and after that double click the skin you have downloaded.
and... TADAAA!! you now have a Super Junior Player thanks to GOM! :)))
4 Super Junior skins to choose from plus there's a lot of other Kpop Artists skin on the link I gave you, which you may like to try too. ^^

for those who want to know...

sorry for the late post...