fis mbr not work

hi

I have a dual boot XP pro and vista now when I decide to remove my XP pro
when I reboot again the XP Pro stil in my boot loader but not fuctioning properly

My question is how to remove the XP pro boot loader and back to a single mode boot loader which is belong to vista??
I try some trick but doesn't work for me here are some trick that I a
lready try

I restart my pc and raload my vista cd and goto fix problem but it seems still doesn't work
I already try some trick bootrec.exe/fixmbr bu still not work..

please help this problem if I how I can getback is a single boot loader
coz all the time my xp boot loader bag me

how di I fix this problem???


thanks for your help in advance