XS++ 3.1 Guide-Flashing, Customizing, Recovering

[tricksterd]

Hi there, I'm trying to debrand a w850i that I had on contract from Three in the UK. Its now unlocked (code supplied by Three) and I'm trying to debrand it so my girlfriend can use it on the Orange network in the UK. What firmware do I need? and do i need anything else?
Here is a copy of the log file

19:14:20| Baseband ID: 9900
19:14:20| Protocol Version: 3.1
19:14:20| Phone name detected!
19:14:20|
19:14:20| Profiling SEMC phone...
19:14:20| Platform: DB2020
19:14:20| OTP CID: 49
19:14:20| EROM CID: 52
19:14:20| EROM Color: Red
19:14:20| IMEI: 35240101xxxxxx
19:14:20| Phone ID: W850
19:14:20| Region: HUTCH_1
19:14:20| CDA: CDA102677/2 R5A
19:14:20| Firmware Version: R1EJ001
19:14:20| EROM: R3A016


Thanks in advance :)