Flashing K800i????

can any one tell me if i can flash my k800i with this FS and MAIN file together K800_R8BF003_FS_EUROPE_2_RED52
K800_R8BF003_MAIN_GENERIC_WI_RED52

or i need a MAIN file for Europe 2

It will work fine.

Look here how to flash:

Flash your phone and How to apply or remove patch using SETool 2 Lite

or

XS++ 3.1 Guide-Flashing,Customizing,Recovering

Nice day

thanks for the help.....

You should also finalize you phone using the custom file, or you will get configuration error.
This one would be good HB1-06_Gen_CDA102568_11_R8A_GENERIC_EUROPE_2