But the problem is that (at least with my Camera), your photos will be a few megabytes each. Given that a floppy only stores 1.4MB, you'll be lucky to get one photo per floppy.
If you can borrow a friend's USB flash drive (and get the required drivers for 98 as AC says), it'll work.
Another option for the USB flash drive issue is to use Knoppix. It's a free GNU/Linux live CD (it's an operating system like Windows that runs off the CD), and also reads your internal drive. It also has far better USB support than Windows 98 does. So you could burn Knoppix to CD, boot your computer into Knoppix on the CD (maybe requiring a boot floppy...), then copy your files from hard drive to flash stick or external hard drive.
Certainly a long way round, but it may be the fastest option overall if you have lots of photos to copy.