problem with windows 7

hey all

i am sorry cant type into arabic
any i have a serious problem with windows 7
i had windows 7 installed on drive c
and as u know many app. wont run on windows 7 64 bit
so i installed windows xp
from a cd - boot on drive E
and its working fine

the problem is
when i start the pc
windows 7 is gone
it loads windows xo directly
with out letting me to choose between them as usual
when u have more than oneoperating system

is there a way to get windows 7 back into the boot screen
i think the problem is with the boot file

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(3)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(3)\WINDOWS="Micro soft Windows XP Professional" /noexecute=optin /fastdetect

if i edit the boot file and added
windows 7 as partition 1
would i get it back??
or do i have to install windows 7 again?

thnx alot

problem with windows 7 - plz help