Can't Boot Server 2003 After Having Installed Windows 7

I had three operating systems in my computer: Ubunt, Win XP and Win Server 2003. Grub was the booting program, that offers you go to Windows loader. When I selected this, I could choose between XP and Server 2003, according to XP boot.ini file.Yesterday I got Windows 7 installed over XP. Everything seemed to be fine. I got back Grub booting with Super Grub. When I boot the computer I choose Windows booting, and now, Windows 7 menu is shown.First options here were:

- Previous Windows version
- Windows7

Firtst entry did not work: when you select it the computer just hungs up doing nothing, showing nothing, totally black.I installed EasyBCD and tried to edit boot menu: adding new entry to be autodetected or selecting the drive, but I get just absolutely nothing. When I choose this new entry to be loaded, same result: black screen.These are my curent booting settings:There are a total of 3 entries listed in the bootloader.

Default: Windows 7
Timeout: 15 seconds
Boot Drive: C:
Entry #1
Name: Versi�n anterior de Windows
BCD ID: {ntldr}

[code]....

I tried also copying a regular boot.ini file (see below) into the Server 2003 partition, but all I got with this is, instead a black screen, a message saying that system in " NSTeasyldr1" cannot be loaded by some hardware/software error (no more options but to go back)

Code: [boot loader]
timeout=5
default=multi(0)disk(0)rdisk(0)partition(1)WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)WINDOWS="Windows Server 2003, Enterprise" /noexecute=optout /fastdetect As said, I am totally desperated with this, I really need my server 2003 getting launched