hellow all this is my first thread

i have windows xp on c: drive and vista on D: drive
for some reasons i have to reformat patetion c: and reinstall win xp
after that windows vista disappear from the boot ini so i cant choose vista
and when i add a script to boot ini i began to see vista on the start up
but when i choose vista it does not work and the notebook hangs

Help me please

thanks to all