Also, you may find the
Transfer Guide useful in this situation as you're going to need to put the files back on the web in working (hopefully) order...
A developer (like myself, or anyone at UBBDev) would be able to get it all running for rather cheap (under $100 for the work) if you don't feel secure about working on it; note that to get the final 5x version or the latest 6x version you'll need to have a valid and current member license.