When you partitioned the drive, did you select PFS-DS? Else you will not be able to see about 4GB without a patched SCSI-device.
PFS-AIO will automatically use direct SCSI if required, so he should be okay with the 8GB CF card. And Chartus, if you want to go above 8GB (one day you may) then you'll need to use a different more recent scsi.device than is provided in the 2 or 3 version Kickstart ROM.
