I believe you will find that since you dont have a boot from scsi capability
in your bios, this failure to boot from the sata card is a limitation of the
particular sata card you have purchased.
Whilst if you had a sccsi boot option it would doubtless be OK not having
such would require you to have a sata card that has its own bios/boot
loader.
I use an Adaptec card that I use as my boot device (disk attached has the
o/s), it doesnt require any particular boot setting in the sys bios. (The
card however cost $380)
Having said that, if you boot from your ide drive, with the sata card
attached, and you did the repair installation of win using the F6 option to
install the sata card drivers during the installation from floppy, then any
sata disk attached should have been visible in Disk Management. If it isnt
either the card is not seated correctly, something wrong with the drivers
installation, or the card has a fault (assuming the card is the same sata
revision as your sata disk, ie sata1 or sata2)