i need help

im tryin to install win xp pro from nothing right from the dos. im having trouble in the dos where the partitions r made, the person who had he comp before me did ???to it and now i cant delete the the extended partition because it has a logical drive in it that is not assigned anywhere and i cant comlete the rest of the installation i need some good detailed help plz…

When you go to install XP, it should ask if you want to reformat the hard drive. Reformat it.