Wow, so your restores are bad. Out of curiousity, were these backups on a cd? If so, copy them to your hard drive first, then go to the properties of the backup, and uncheck the read only attribute. Again, you haven't give me full info, I don't know if your backups are copies of the company data folder, or .ptb files. I'll need to know this to go into more detail, as well as what happens when you restore. Does it just not restore? Does it restore, but then you get errors within Peachtree?
If you wish to reinstall Peachtree, you'll be safe if you do this.
Make a peachtree backup file, .ptb
Store it in a safe location on your hard drive, say c:\backup.
Then copy the entire peachw folder (i'm assuming this is where your company is), to c:\backup as well.
Now you can uninstall/reinstall, you'll have a safe backup file, and a safe copy.
Matt J.
Please always take the time to backup any and all data before performing any actions suggested for ANY problem, regardless of how minor a change it might seem. Also test the backup to make sure it is intact.