Patching question

[Midjet]

I have recently patched Supecross 2001 from ntsc to pal for a friend, but now when I try to patch the ntsc for myself it says succesful, but when I burn it it still plays in black and white....any ideas. I have tried the xoltana pal4u patch from gamecopy world I have tried my own pal4u patch and I have tried zapper.... I know there is a boot cd which will resolve this problem but would prefer to patch as the boot cd takes forever to get the right y or x axis setting to centre the screen...Is there or an someone create a pal/ntsc selector?
TIA