IDE Card Reader

I'm trying to use a IDE SD, MS, CF, SM card reader ( it slots into the 3.5 
inch floppy slot and uses an IDE port instead of USB ) on my FreeBSD 5.1 
Release system. This piece of hardware is not in any of the suppported 
hardware list but I thought Id place post this incase anyone has had any 
experience with them or can tell me what the error means. 

If I have the card reader installed ( detected by BIOS as a IOMEGA ZIP drive ) 
it reboots after probing all the devices, following is the dmesg.

pci0: <multimedia, video> at device 11.0 (no driver attached)
pci0: <network, ethernet> at device 12.0 (no driver attached)
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port 
0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
orm0: <Option ROMs> at iomem 0xd0000-0xd3fff,0xc0000-0xccfff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 10.000 msec
fwohci0: BUS reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
ad2: DMA limited to UDMA33, non-ATA66 cable or device
ad2: 57241MB <ST360021A> [116301/16/63] at ata1-master UDMA33
acd0: CD-RW <LITE-ON LTR-52246S> at ata0-master PIO4
acd1: DVD-ROM <LITEON DVD-ROM LTD163D> at ata0-slave PIO4


Fatal trap 18: integer divide fault while in kernel mode
instruction pointer     = 0x8:0xc01d4ee6
stack pointer           = 0x10:0xd67bcc60
frame pointer           = 0x10:0xd67bcca8
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 24 (irq15: ata1)
trap number             = 18
panic: integer divide fault

If any more info is required please let me know

Thanks

David