How to recovery windows vista from windows 7

Hello,
i want ask about :
i had orginal copy of windows vista with recovery partiton on my laptop ,
but i tried to install windows 7 copy , so the vista copy removed , still now the recovery partiton not removed ...
ok until now .. no problem
when i want to reinstall windows vista i go to recovery manager but i didn't find recovery manager in start menu...
what can i do to get windows vista copy from my recovery partion?
finally thnx alot