[Q] problem when flashing galaxy s3 music player (plz help fast)

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http://forum.xda-developers.com – Guys i was flashing the galaxy S3 music player on my sgs2 I9100 after i flashed it and phone restart i didnt find the s3 music player evenmy old sound player wasnt in my menu.i dont have any music player on my phone now.i try'd to install manual from system/app and it doesnt work. What should I do now for having the old or a new one?just one of them... Plz help me.... (HowTos)