Hello, all... I'll be your annoying n00b for today... or at least one of them

I have a really old system ("born" early 1992) that I am restoring to more-or-less stock hardware. It was my first computer, and I'm rather attached to it, even though most people would think that its primary application would be in marine maneuver prevention

System specs:
Athena Power AP-AT30 AT/LPX 300W PSU
Pine Technology PT-319a Baby AT Motherboard (no on-board drive controllers!)
TI 486SX 33MHz on-board
NO math coprocessor, and therefore no floating point support
4MB RAM (yes, four
megabytes 
)
Boring ISA video card
Boring ISA sound card with CD-ROM controller on-card
Goldstar IDE Plus V3 ISA drive & I/O controller card
Western Digital WDAC-2250 256MB HDD
CD-ROM drive (I think it's either a 16x or a 24x, but I don't remember)
2x Floppy Drives (one for loading a boot floppy, the other for installing boot managers)
All hardware is correctly installed and functioning properly. The hard drive is correctly configured in BIOS. An OS is installed (Windows For Workgroups WFW311) but it did not install a bootloader because its install program was too bloody stupid to realize that the system was booted off of a floppy disk.
The issue, plain and simple, is that PLoP Boot Manager's installer cannot read/write my HDD. It detects an HDD at 0x80, but it cannot even get a size for it, let alone install anything. Obviously booting from CD is out of the question. I suppose that I should also mention, for those too young to recall, that USB support is not an option on something this old. It does not exist.
Please tell me what I need to do in order to make PLoP work!
EDIT: hit Post and then realized I should probably mention: "bend over and kiss your *** goodbye" is NOT an acceptable answer.