I'm no expert and I can't help you on AF2005 as I don't have it but...
I'm not sure your setup was right in the first place as "simple communications controller" suggests windows didn't have the driver loaded properly.
I have a [IndividualComputers Devices] in device manager, this has a device under it called Catweasel controller PCI.
The driver version is 0.1.0.9
In addition to this you should have
5 "floppy on catweasel" entries for each floppy drive you have, under [Floppy Drives] in device manager
Since your drivers are in a screwed state I would try this..
Download all your M/B drivers, LAN, VGA, CatIV etc and put them in a folder on your HD or on a CD.
delete PCI bus from under system devices in device manager
On the next reboot Windows will re-detect and install your drivers again ( may take several reboots to finish), hopefully it will go through ok this time.
Please make a backup in case it goes wrong before you attempt this and make sure you have all your drivers to hand.
Good Luck