Since Megaupload probably won't be coming back, I put Killing Me Softly, rtto and the x86 drivers on my site for download.
Samsung Precedent Rooting Files
You can click on the link (or the QR code) or use the QR reader in your phone.
If anyone needs the 64 bit drivers, let me know and I'll add them (although Windows 7 seems to find what it needs all by itself).
If the QR codes are too close together, let me know here and I'll redo the page.
(No comments on the page, please. Yes, I know how to make a nice page, I do it for a living, but this one works.)
I have plenty of room on that site, so if you need anything else for the Precedent that's not in the Market or on Amazon, let me know and if I can find it I'll put it up.
Enjoy.