Perhaps the driver is redefined under a different name, or that specific driver was removed from the 7-26 version. Have you tried installing your printer as a "new printer" in the 7-26 version?
I'm using version 07-26 and I am unable to add a printer. My previous version 06-06 works fine. Here is the message that I get.
Unable to load the requested driver:
Unable to create the Foomatic driver [HP-LaserJet_5P,ljet4]. Either that driver does not exist, or you don't have the required permissions to perform that operation.
Perhaps the driver is redefined under a different name, or that specific driver was removed from the 7-26 version. Have you tried installing your printer as a "new printer" in the 7-26 version?
I ended up testing the CD. It fails on this computer but OK on another. I burned another CD and it works fine. Burned it at x8. The one that failed was burned at x32. Maybe it had a problem reading the CD. I didn't see any errors the first time I booted up with it.
Cordless Wireless Air Blower Handheld Vacuum Cleaner Strong Suction Car Home
$22.98
Compressed Air Duster with Air Blower 100000RPM Vacuum Cleaner and Air Duster
$38.99
Electric Vacuum Cleaner Air Duster Suction High Pressure for Computer Car Home
$9.97
KLIM Cool Laptop Cooler Fan, Portable Quiet Cooling Vacuum w/Display - BLUE LED
$15.95
100000RPM Cordless Air Duster Blower Compressed Computer Cleaning Vacuum Cleaner
$28.98
Mini USB Keyboard Vacuum Cleaner PC Laptop Computer Brush Dust Cleaning Kit
$2.99
COLORCORAL Vacuum Dust Cleaner Rechargeable Computer Vacuum Keyboard Cleaner ...
$37.70
Mini Computer Vacuum USB Keyboard Cleaner PC Laptop Brush Dust Cleaning Kit US
$13.68
Compressed Air Duster with Air Blower 100000RPM Vacuum Cleaner and Air Duster
$24.99
Eureka Stylus Nec380 Cordless Vacuum Bldc Motor Led Headlights Lightweight Grey
$118.88