|... when you say "no partions" you do mean that there is of course your one main partition (not just the spelling!) guessing you mean that there are not any others!|
... just incase your xp cd ca'nt see any at all!
... I could send you a link of an "iso" bootup cd image, you'll need a cd writer and one blank cd to create the disc.
... suggesting that you bootup with it retrieve the xp serial from you installed xp which this has the ability to do.
... open windows explorer on the desktop (has gui interface) navigate to your c:\windows\i386 folder and open/run the file "winnt32.exe" which should start windows installation.
... I would also suggest that you copy the entire "i386" folder to a usb (cheap as chips flash drive?) device (about 550MB) which you'll be able to do for safe keeping incase something goes wrong.
... let me know and I'll pm you the link!
... Posting is provided "AS IS" with no warranties