somebody help.. stuck on second step of xs++ 3.1

[SeaMonkey]

Yes and no- debrand remove all stuff that your provider put in phone with branded firmware.puting generic firmware you will remove all this,but some buttons loose functionallity that have wright now(in generic they have some other functions).
Good thing is - you can do what ever you want after debranding.And you need this 3 files for debranding:

MAIN: W580_R8BE001_MAIN_GENERIC_LA_RED52
FS: W580_R8BE001_FS_EUROPE_5_RED52 and
CUSTPACK: HB1-06_Gen_CDA102568_14_R8A_GENERIC_EUROPE_5

But see here for language that suites you most Top Sony - Languages Description and notice that you must match FS with CUSTPACK region