No active partition after deleting 2 OS?

Oh yes I screwed up! I have XP pro sp3 installed on HD1 and wanted to test Win7 on HD2 so I set up a dual boot. Finished with Win7 I wanted to remove it. I simply reformatted the HD2 thinking that would wipe out Win7 and that would be that. WRONG

Win 7 still shows up in the boot list, not a big deal at this point just annoying.

The major problem is that my C drive partition is running out of space. When I attempt to resize my partitions with Partition Magic it tells me that there is no active partition. It will not allow me to set C as the active partition, it’s grayed out.

When I tried running fixboot it says there are errors. Fixmbr sounds like its going to destroy my partition tables.

The computer is working fine aside from screaming about lack of space for the OS.

Yes I can reinstall XP Pro but trying to avoid that if there is some easier, faster fix. pray