Guide to dual booting leopard and vista

I have been tryin to get this to work for days
dual booting vista and leopard
but i can't figure it out

so here is how i have been doing it

load leopard disc and create 2 partitions and i am using guid partitions
than i install vista
than i install leopard
ok leopard boots fine
vista gives tells me that i have to put the vista disc in and repair
but the disc can't find my vista os partition

and what is this dual boot loader in leopard
it says something that you can use it to boot into windows
so when i use that bootloader i can't boot into leopard
says missing hfs+
so i manually installed the boot loader
and it still doesn't work

so could someone give us a step by step guide as how to dual boot vista and leopard
bhast2

and yes i have been googling for 3 days now
and trying everything i find out there and it doesn't work