with Partition Magic, there is a option when you install the product to make the boot disks, it would be the DOS option.
But you already have a fine working partition program installed on your system, called FDISK. if not look for the Free program called FIPS, it does do resizing also.
FIPS is a program for non-destructive splitting of harddisk partitions.
http://www.igd.fhg.de/~aschaefe/fips/
Ranish Partition Manager is a boot manager and hard disk partitioner.
http://www.ranish.com/part/
Parted - GNU Parted is a program for creating, destroying, resizing, checking and copying partitions, and the file systems on them. This is useful for creating space for new operating systems, reorganising disk usage, copying data between hard disks and disk imaging.
http://www.gnu.org/software/parted/
and a few others can be found here, such as;
MS Fdisk For Hard Disks Greater Than 64 Gig
AEFDISK 1.9 Get Rid Of NT, Linux Partitions, More
DELPART Another Partition Deleter With a GUI
BootitNG 1.3X Boot Mgr, Partitioner, Imaging
Masterbooter + EFDISK 3.2 Boot Mgr And Partitioner
CleanSlate 1.0 Partition/MBR Backup/Cleaner Tool
Partition Managers Ranish 2.40 Zeleps 1.3.4
FPsys 1.3 Recover Data From Lost Partitions
http://www.bootdisk.com/utility.htm