realtek mac ac97 driver reqd

hi..
i very very stupidly uninstalled the realtek driver..kicking myself for it. I'm also kind of clueless about comp specs n stuff..anyway this is what i require..I have a toshiba satellite a80. I need Realtek ac'97 with ac-250 codec.(i checkd this in the manual). Anyone pleaseee tell me where to get that from?
I also have a recovery cd but i dont want to use that cos everything on my hard drive will be deleted right? I dont have any seperate cd that has utilities and drivers.
any help will be appreciated..
thanks a lot...

All drivers for your laptop are here: http://uk.computers.toshiba-europe.c...jsp?service=UK
Sound Driver here: http://uk.computers.toshiba-europe.c...verLanguage=42