Unable to detect Boot Camp Hardisk in Parallel 5

I want to use Parallel destop 5 to run Windows XP in Boot Camp.

The enivironment is Macbook 2.4G (bought in 2008 April) with OS 10.5.8. Before using Parallel, I have used VM fusion 2.06 to start windows XP in Boot camp smoothly. Then, I want to try Parallel destop 5 because it seems to work better than VM fusion. However, I have met the errors as follows:

1. I started the Parallel Destop 5 and it shows the "Operating System Detection". Then I chos the "Boot Camp Partition"

2. Then, the parallel destop showed "Operating System Could Not Be detected". therefore, I chose the version" Windows XP" to continue. Then, I continued to choose cosutom setting: Processor 1, Mainmemory:1GB.

3. When it showed "hard disk option", I chose the Boot Camp Partition. Then, it only showed one disk and I continued few steps...

It showed the message as follows:

The Boot Camp hard disk has been successfully configured, but an unexpected error occured when mounting the selected Boot Camp partitions back to your Mac.

Use Disk Utility to mount these partitions back to your Mac.

Then, I could not use the Parallel 5 with my windows XP in Boot Camp . Would you please help me?