I need help!!

[Walt Haynes]

    I need help installing FreeBSD 5.3 as the second OS on my workstation. I have a 501 Mhz Pentium processor with Windows XP Professional and a 28Ghz hard drive that's divided into four equal sized primary partitions. I also have boot manager Boot-US 2.0.6 installed. How do I Install FreeBSD 5.3 into another of the primary partitions ? I have the I386 boot only disk and I386 - disks 1 and 2. I also have four primary partitions defined and two of them are available to receive the FreeBSD code.