You need K530 MAIN and FS. You can download them from Download Section or from iProTebe.cz. Use XS++ to flash your phone. First flash file system, then customize it and after that flash main.

Links:
XS++ 3.1 Guide-Flashing,Customizing,Recovering - Top Sony Forums
How to get access to Download Area? - Top Sony Forums

@dmoe: Your avatar is scary!!!