Reformat "CP/M, Concurrent DOS, CTOS" hidden partition ?

I have a new Dell Inspiron 700M with a 30 GB hard drive.  It came with a 3-4 GB hidden partition called "CP/M, Concurrent DOS, CTOS", which according to posts on this board is a program-reinstall partition to aid the reinstall of Windows XP.  This is of course is in addition to the "C:" partition (about 34 GB in size because of the hidden partition) containing the main XP install.  According to other posts this hidden partition has been added to some of Dell's line since July, 2004 (?).  What I want to do is upgrade the hard drive to a larger size.  I sent an email to Dell support and they sent an extensive explanation of how to reinstall Windows XP on a new hard drive, but they did not answer my questions about this "CP/M, Concurrent DOS, CTOS" hidden partition.  Does anyone know how to reconstruct it when I upgrade to a larger hard drive?  I was thinking of using Norton Ghost to just copy the "C:" partition as well as this hidden partition to a new hard drive.  Or second, use the supplied CD's and reinstall the whole system on the new hard drive.  But does anyone know if these CD's deal/set up the hidden restore partition?