Samsung S3 Progre SCL21 Help

I'm trying to root my S3, but I'm having some issues. The issue being it's an S3 Progre and not just a normal S3. Living in Japan has great perks, but I can't read the forums to figure this stuff out, haha. I keep running into dead end after dead end. Hoping that someone here might be able to help me. Would greatly appreciate it! Thanks in advance for any help.