Problem dual booting vista and windows 7? -

i decided to dual boot windows 7 with vista. i shrunk the partition on vista and then installed 7 on the new partition. the problem now is that the dual boot screen at startup does not show, as if windows 7 was the only os on my computer. i ve tried reassigning the driver letters on the vista partition and changing the bootloader using easybcd but it doesnt work. i want to boot back into vista. any help?

http://maketecheasier.com/how-to-dual-bo...

Reinstalling Vista over the previous version would restore the boot options I hope!