7 Hours Later...
...and the online booking server at work is back online. I reverted back to Windows 2000 versus running it on Windows 2003 as our reservation system had some performance and stability issues with Windows 2003 (it's an old piece of crap, DOS-based system, so I don't blame Microsoft on this one, I blame the software). I rebuilt the exporting scripts, fixed the IIS permissions, updated, patched, sliced, and diced. I still need re-do the SSL cert as my cert backup doesn't seem to want to work, so that's on the to-do list for tomorrow, as well as getting FTP access back up (not a critical thing, as I rarely use FTP to get onto the server). Performance is much better on the server under Windows 2K than Windows 2K3, and more stable.
Now I just need to catch up with my other work, which will take longer. Ugh.