"No Active Partition" message in Partittion Magic

I'm having a problem using Partition Magic on my XP machine.

 

I'm trying to take a 1 GIG hard drive and partition it to an approx  400Gig C Drive and a 600Gig second drive letter.

The idea is that it'd be easier to back up my C drive with just the operating system and important programs using Ghost if it didn't contain all sorts of other data that I can just store in another drive letter.

 

Anyway, in Partition Magic, I:

 

1.  Resize C: to approx 400Gigs.

2. Allocate the unallocated "F" drive space (The remainder of the former c:)

3. Go to APPLY these changes, and

 

I get  the warning that there is NO ACTIVE PARTITION, do I want to continue?????

 

I'm concerned about making my drive unbootable (And I have no floppy drive on this machine, so I can't use PM's TOOLS  to make a bootable rescue disc (I'm using Partition Magic 8.05).

 

I'd appreciate any help you can give.

 

Thanks,

 

 Flash