Newbie needs help with customizing a W600i

I started off by trying to add Flash Menus to my Cingular branded W600i. I tried using custom_upgrade.xml but it didn’t work. I added SWF menus along with THM with XS++ 2.2 and have backed up the GDF with Setool2 lite ver. 1.10. I figure I will need to debrand it so that I can get the menus. I check the folder structure and it is correct, but no menus. Here are the files that I have:

W600_R7CA017_FS_AMERICA_2_RED49 – FS
W600_R7CA017_MAIN_NAM_2_EE_RED49 – Main
W600i_CDA102453_120905_120905_Generic_Trade_USA_AM ERICA_1 – CustomPac

Do I need a Rest File? Any help would be appreciated…Thanks…