Because it doesn't start anymore my advise would be take out the hard disk and use the first install on nwsp2 procedure and files, in this case you don't need to partition the hard disk again in case it has already the partition table as described in the guide, in principle you only need to write the disk images to sdb1, sdb2 and sdb7 and write the kernel to sdb6 as described in the guide.
After that upgrade to 14-0