debrand cid52 db3150 z750 from att

I want to debrand my z750 from ATT's crippleware preferably using a2uploader.

I have found the download section and just don't want to brick my phone
what files should I download to get this phone to sony ericssons most up to date firmware? I have flashed a w580i before with jdflasher, and have flashed a z750 with dclient this didn't seem to require a custompack choice..

my main worry is probably choosing the correct files so not to brick the phone


xs++ readout:
21:54:43| Baseband ID: C802
21:54:43| Protocol Version: 4.1
21:54:43| Phone name detected!
21:54:43|
21:54:43| Profiling SEMC phone...
21:54:43| Platform: DB3150
21:54:43| OTP CID: 52
21:54:43| EROM CID: 52
21:54:43| EROM Color: Red
21:54:43| IMEI: 35893701xxxxxx
21:54:43| Phone ID: Z750
21:54:43| Region: CINGULAR
21:54:43| CDA: 1201-9202 R32A
21:54:43| Firmware Version: R1DB005
21:54:43| EROM: 1200-4341 SEMCBOOT R6A013

use any GENERIC MAIN with CID52 and for the FS, read here : Top Sony - Languages Description and select the requird region and use the custpack which match the FS

EDIT: ignore the post below... I chose those and the bottom generic world one.. PERFECT thank you for your help....

okay so I pick
Z750_R1FA030_MAIN_GENERIC_2_DA_RED52
Z750_R1FA030_FS_AMERICA_RED52

im sorry I don't follow to well on the custompack thats where I was most confused since I didn't have to choose the first time around...
and which one of these ?

Sofia_i_CDF1200-9951_4_R7A_GENERIC_BALTIC 05-19-2008
Sofia_i_CDF1201-0071_3_R7A_GENERIC_NORDIC 05-19-2008
Sofia_i_CDF1201-0077_3_R7A_GENERIC_WESTERN-EUROPE 05-19-2008
Sofia_i_CDF1201-0083_6_R7A_GENERIC_ADRIATIC 05-19-2008
Sofia_i_CDF1201-0089_2_R7A_GENERIC_AMERICA 05-19-2008
Sofia_i_CDF1201-0095_2_R7A_GENERIC_AMERICA 05-19-2008
Sofia_i_CDF1201-0102_3_R7A_GENERIC_APAC-ANZ 05-19-2008
Sofia_i_CDF1201-0110_3_R7A_GENERIC_C-ASIA 05-19-2008
Sofia_i_CDF1201-0116_3_R7A_GENERIC_CENTRAL-EUROPE 05-19-2008
Sofia_i_CDF1201-0122_3_R7A_GENERIC_FRANCE 05-19-2008
Sofia_i_CDF1201-0138_3_R7A_GENERIC_S-E-EUROPE 05-19-2008
Sofia_i_CDF1201-0144_4_R7A_GENERIC_S-ASIA-LEVAN 05-19-2008
Sofia_i_CDF1201-0150_4_R7A_GENERIC_S-CENTR-AFR 05-19-2008
Sofia_i_CDF1201-0164_5_R7A_GENERIC_TAIWAN 05-19-2008
Sofia_i_CDF1201-0176_3_R7A_GENERIC_APAC-ANZ 05-19-2008
Z750a_1201-9202_R32A_ATT_USA 05-19-2008
Z750a_1201-9260_R15A_TELCEL_GSM_Mexico 05-19-2008
Z750a_1202-5884_R5A_Customized_Generic_LAM_(b) 05-19-2008
Z750a_1206-7735_R1A_Customized_USA 05-19-2008
Z750a_1206-9572_R1A_Movistar_Venezuela 05-19-2008
Z750i_1201-4286_R21A_Telstra_Australia 05-19-2008
Z750i_1201-5803_R11A_Customized_Taiwan 05-19-2008
Z750i_1201-5803_R6A_Customized_Taiwan 05-19-2008
Z750i_1201-5806_R11A_Claro_Peru_Peru 05-19-2008
Z750i_1201-5822_R10A_Claro_Chile 05-19-2008
Z750i_1201-5825_R12A_Movistar_Chile 05-19-2008
Z750i_1201-5825_R17A_Movistar_Chile 05-19-2008
Z750i_1201-5831_R13A_Entel_PCS_Chile 05-19-2008
Z750i_1201-6030_R11A_Claro_Brazil 05-19-2008
Z750i_1201-6033_R6A_Comcel_3GSM_Colombia 05-19-2008
Z750i_1201-6491_R8A_Customized_Indonesia 05-19-2008
Z750i_1201-9234_R10A_movistar_Mexico 05-19-2008
Z750i_1202-5927_R2A_H_PANNON_GSM_Hungary 05-19-2008
Z750i_1203-1693_R9A_Personal_Argentina 05-19-2008
Z750i_1203-1790_R3A_CTI_Movil_Argentina 05-19-2008
Z750i_1203-3851_R1A_Customized_USA 05-19-2008
Z750i_1203-3863_R4A_Telenor_Serbia_and_Montenegro 05-19-2008
Z750i_1203-3863_R5A_Telenor_Serbia 05-19-2008
Z750i_1203-3866_R1A_Customized_Russia 05-19-2008
Z750i_1203-3866_R3A_Customized_Russia 05-19-2008
Z750i_1203-4672_R9A_TELCEL_GSM_Mexico 05-19-2008
Z750i_1204-2292_R1A_Customized_Argentina 05-19-2008
Z750i_1205-7980_R1A_Customized_Southern_Cone_Generic_(b) 05-19-2008
Z750i_20070806194856_Test_Vivo_Brazil 05-19-2008
Z750i_20070820191008_Test_Vivo_Brazil 05-19-2008
Z750i_20070820204224_Test_Vivo_Brazil 05-19-2008
Z750i_20071006103910_Test_Movistar_Chile 05-19-2008
Z750i_20071108174155_Test_Movistar_Chile 05-19-2008
Z750i_20071121211438_Test_Movistar_Chile 05-19-2008
Z750i_CDF1201-5803_1_R4A_Customized_Taiwan 05-19-2008
Z750i_CDF1201-9234_1_R2A_movistar_Mexico 05-19-2008
Z750_1200-6834_R3A_Generic_-_Customer_Services_Worldwide