Bootcamp Problem

I'm trying to duel boot XP but bootcamp assistant is telling me that 'The startup disk cannot be partitioned or restored to a single partition'. Then advises me to format and restore, I've done this but still get this error.

What am I doing wrong?

Here's the message i get.

Use Disk Utility and find out what format your startup disk is formatted as.
It should be HFS (Journalled) only.

pjhutch said:

Use Disk Utility and find out what format your startup disk is formatted as.
It should be HFS (Journalled) only.

Click to expand...

I've done this. I cloned my hard drive to my external one, booted from that then used disk utility to re-format the internal one to HFS (Journalled). I still get the error.

I've attached some pictures. The main disk utility screen and the info screen for my hard drive.