dual boot two disk

[Perica Veljanovski]

Hi

I have a problem booting the second disk with fbsd's boot manager. I 
installed a new disk as pri/master (ad0) and moved my old disk to 
sec/master (ad2). Then devided ad0 (40GB) with fbsd's fdisk in 10G (ufs) 
and 30G (fat) and installed FreeBSD 5.3 with a boot manager on the first 
10G. When I boot the system I get:

F1 FreeBSD   (the fbsd on ad0s1)
F2 DOS         (the 30G fat, ad0s2)
F5 Other         (again the fbsd)

So there is no option to boot from the second disk!?
Allso when I unlplug ad0 or change the BIOS to boot from ad2 (hd1 as he 
sees it), WinXP boots just fine, meaning, there is no problem with the 
mbr on ad2.

I read the man for boot0cfg, but I can't make heads or tails of ti!!! 
how do I configure/install the boo0 to show the second disk ni the boot 
menu?