Dual Boot & Disk Boot Error

Alright lets see how accurately I can explain this.. I'm not very pro at this

I have an SATA drive and an IDE drive.  When I first built this computer I had Windows XP Pro being booted off the SATA drive and the IDE drive was pure storage.  Somewhere along the way my SATA drive crashed (couldn't boot from it anymore; BSODs before Windows Startup screen and Safe mode/recovery didn't work) so I installed Windows XP on my IDE drive to save my files and reformat the SATA drive. 

Now I've installed XP Pro x64 on the SATA drive, but I can't boot through that hard disk anymore.  The only way I can access x64 is by booting through the IDE drive and selecting x64 on the Dual Boot screen.  Attempting to boot up through the SATA disk only gives me a black screen saying "Disk Boot Error, insert system disk and press enter" and doing so doesn't work.

Also now in Device manager when on x64 I have it telling me the SATA is a boot disk and the IDE is a system disk.  I have no clue whats going on :3

Any ideas?

When people say "Dual-Boot" they mean 2 separate OS's on 1 partitioned physical disk; not 2 separate bootable physical disks in 1 machine.
Maybe you only think x64 is installed on the SATA, when in fact it has no OS and is not showing up at all as it may be unpartitioned.
No OS on SATA, BIOS looks to IDE, which has two OS's installed.
Double check your BIOS boot order. Disable as necessary.