Sorry for the newbish question, however, I downloaded RSDLite, put SPRecovery on my moto Droid, mounted up my phone on to the PC and copy/pasted SS4.1 Froyo and renamed it update.zip. I then booted it into recovery, wiped data/cache, accept the update.zip and then installed it.
The problem is when I get to that last part, it aborts 100% of the time. I am not sure why. Is there something I'm doing wrong? I've done this with Cyan and it worked fine. The .zip file is just named "update" because if i name it "update.zip" it will say in Properties that it's named "update.zip.zip" which seems to be a common error people make when rooting.