Multiboot problem!

Hi guys,

I have Windows 2000 Advanced Server in my laptop. I thought of having
multiboot, and started installing Windows XP professional in the
unpartitioned space of 16GB and started formating that 16gb as C:\(My
total hard sidk is 80GB out of which, I had 60 GB with data on Windows
2000 Server). But, in the middle of the installation, I got "Data
Cyclic Redundancy error" and I was not able to proceed the installation
of XP. So, when I tried to reboot the system, it is starting with
XP(without multiboot option of Win 2000 Server) and asking me to
complete the installation of XP.

When I tried to boot with Windows 2000 Advanced server cd, it is
showing 60 gb of my hard disk as "unknown partition" and other drives
as C:\ with xp installation. I tried to repair it with my Win 2000 Adv.
server cd, but it is asking for "Emergency Repair Disk", which I don't
have and I don't know how to get it. And I also don't have floppy drive
in my laptop.

So, please help me how to get my system working back as before with
Windows 2000 without loosing my data.

Thanks in advance,

Sree