Techman... Yes all the hard drives are SATA. I do have a DVD burner that is a parallel drive, as well as a floppy drive. I'm not sure why I would need a RAID card to use my DVD drive as it works fine now...
This is really not a job for a webs site posting. There is too much info missing.
Installing SATA is supposed to be straight forward.
DELL is actually a pretty good setup.
As for why a RAID card would be needed is not answerable here. However many older model machines needed one to fully enable all the drive channels.
You have room for 2 SATA drives and four regular drives.
You have one 500 gig SATA drive on port 1.
Why is it NOT on port 0? In my experience they are supposed to be on the first port available when standing alone. Yes, some will say it doesn't matter but that is only on some machines. Some will say the drive needs no jumpers set. However some find it is necessary to set a jumper. That is why the SATA drives have jumper ports on them anyway.
You have to read the manual for the motherboard to be sure. Your machine shows its capable of handling four non SATA drives. However, that may be possible only with certain other settings. Also the drive channel config will matter. Are all the other drives jumpers set correctly. Are they all on the correct channels?
Is the SATA driver installed? Is it required on yoru board. Did you press f6 when doing your XP install to add any other drivers that may be required? Does your motherboard require a driver to enable the SATA access?
Do you have the BOOT order set right?