Let see if I can get this straight?

[skynestor@]

Ok, I have read through a lot of posts about flashing with new firmaware and such, but I'm not sure about one thing. If i flash my phone with central europe FS and Main, will I still be able to use it here in USA on att network. I really would like to have Polish as a option for language. I travel there often.:confused:

[ama95]

You will be able to use your phone on AT&T network.

[hammerhead]

I think you can only add the language files without changing the firmware. I was looking and found this thread, in which you can find this link on how you can add without flash any firmware, only files.

[skynestor@]

You will be able to use your phone on AT&T network.

Now the question is which version to use r6bc002 or r8be001. and can you use any cust pack you want with one of these or does it have to match the fs/main?

[ama95]

Take a look at this:
Top Sony - CDA List

[platijet]

it will be usefull also if you post model of your phone.actually most of models can be converted from US to EUROPE firmware.