For someone looking for help you are a bit scathing towards those trying to help you. You run the risk of being ignored if you do that.
You might like to know that the people who offer help on this site do it for free out of the goodness of their heart and just may be for their own learning. So do not be too harsh when they occasionally get it wrong or in this case mistype. To err is human and all that.
and then give a non-sensical answer like "XP doesn't natively support XP."
That I am pretty sure was a typo and what he meant was:
XP doesn't natively support SATA drives. You can in fact see it in the context of his response.
What mickliq has suggested in his items 1, 2 and 3 is pretty much what you will probably get from even the most experienced PC users.
With regards to not having a floppy drive you may have to slipstream your XP CD to build in your SATA drivers for your SATA hardware in order that you are able to successfully install XP on your rig.
Here is an article on how you might do it if it interests you:
Your original problem might have been fixable. Here is some information on that as I do not know how far you have got to. Per chance that it helps.
☺ When everything else fails, read the instructions.