Yes, they do. I recently purchased the Toaster 4.3 software (the last version) from NewTek, and they sent it right out. Have your Toaster board's serial number if possible so they can get you registered in their support system.
I have just set up a 2000/060 system with Toaster and Flyer cards and everything is working great.
NewTek will send a CD-Rom with 1 floppy disk. Great company to still support their earliest products all these years later.