I came to know that both these files are not there together for those wanting to unbrick their Droid Pro after flashing the SBF file. I have copied these files from the sd card root/cache folder while updating to 3.8.7 after I bricked my phone while flashing CM7.
All you need to do is rename these as update.zip and flash it in stock recovery. But do it in the same order. First flash 2.26 fileand then 3.8.7 file.
This should make it easier to find.
2.26 - http://www.megaupload.com/?d=1YFGXMAJ
3.8.7 - http://www.megaupload.com/?d=PJXLE9UB