zing_deleted

What I would try is boot from xp cd and allow to find operating systems then enter recovery and type fixmbr and reboot if that does not work and bartspe sees the partitions then id load a file of ultraiso or similar to your laptop extract the iso of barts pe download and extract the enclosed file and add the folder to your extracted iso files. Then create a new bootable iso with all the files you have. Boot from barts pe new iso and simply browse the cd and copy the pci.sys file to your windows system 32 drivers folder and see if that helps

Edit if the file exists rename the one you have to pci_sys to save it