"While we continue to sell PageMaker 7.0 and to offer technical support and customer service for
it, we encourage you to switch to Adobe InDesign CS2. As a loyal PageMaker customer, you're entitled to special
pricing for this upgrade, and you'll find a lot of support for making the transition."
So are you aware of this? I see free trials that you could use to see if you can get them over to ID.
As to your other issues it sounds as if there were no backups of the system made when it was working. I know folk are loathe to do such but as time rolls on, you discover one day a backup is your only way out.