windows xp doesn't come with sata drivers, so when you will be installing xp on the sata drives, it will ask you to place a floopy disk with the sata drivers unless of course you slipstream sata drivers into the xp disk. second choise is to install xp on sata disk in ide mode, which i have done so by a mistake.
i'm not sure if that version has the sata drivers, read through the specs. but if you already have a comp just just nlite to slipstream drivers in. it won't take a long time. and it's definetly worth it, unless of course you have a floppy drive.
the thing is with my current pc i dont have a dvd driver and its very bad so i cant do that. and ive read the my mobo manual and it says i supports SATA II i just dont know if i have to spend the extra $90 on XP SP2B
the mobo can support sata, but it's up to the os that you are installing if it's gonna install. if you say that the sp2b xp has SATA driver INCLUDED, they you don't need use a floppy or slipstream anything. in your case that is the only possibily, since you don't have a dvd burner, or floppy. just make sure that the driver is included.