Win XP, OS X x86, Vista 5365 - How to install them all? BCDEdit guru's out there?

I have one 120gig PATA hard drive. I'd like to be able to boot between Win
XP x86, OS X x86 and Vista x64 b5365 (and possibly adding Win XP x64 as
well). What order should I install these OS's, and are there any special
instructions needed for doing so?

My drive was installed using the following partitions, in the specified
order, but I have no option to boot OS X...

Partition #1- 60gig - Primary, NTFS, Win XP x86 - installed second
Partition #2 - 25gig - Primary, NTFS, Vista x64 v5365 - installed third
Partition #3 - 25gig - Primary, MAC journaled, OS X x86 - installed first

What order do I need to install the above OS's? Do I need to do anything
special (like copying the first 512 bytes for each partition as required by
the NTLDR)?

Does anything change if I want to add Partition #4 - Primary - NTFS, Win XP
x86 ?

The documentation for BCDEdit is quite sketchy... Doesn't cover adding third
party partitions at all.

Any help is greatly appreciated!