Restoring Computer when Power Goes Out. Now, Missing Boot Sequence to Restart Computer

I was reinstalling my system via the computer to set at factory default when the power went out and I was no longer able to get in my system. I have a backup of my computer, but it is all in zip files. I need a sequence to set up to find the cd and get into that information so that I can boot it. Or, if someone is able, give me the codes that will start the boot sequence from the UEC??? menu. H-E-L-P!