Here is what I do, other opinions may differ:
I download the file normally, if using a web browser, right click and save the file. If on an ftp site, use ncftp (or anything else, wget, etc). I would consider this downloading fiarly standard.
To make the actual floppies you have a few choices. You can use dd:
# dd if=filename.img of=/dev/fd0 bs=1440k
SEE my appendix A for a full description
If however you are using tomsrbt, the instructions on the website:
http://www.toms.net/rb/tomsrtbt.FAQ
say:
a) extract the .tar.gz archive
b) Be root
c) Be in the tomsrtbt-<version> directory
d) Have a blank floppy with no bad sectors
e) Do './install.s'
APPENDIX A
FROM The redhat installation manual, yes this will work on other non-redhat systems:
Using the dd Command
To make a diskette under Linux (or any other Linux-like operating system), you must have permission to write to the device representing a 3.5-inch diskette drive (known as /dev/fd0 under Linux).
First, label a blank, formatted diskette appropriately (such as "Boot Disk" or "Updates Disk"). Insert it into the diskette drive (but do not issue a mount command). After mounting the Red Hat Linux CD-ROM, change directory to the directory containing the desired image file, and use the following command (changing the name of the image file and diskette device as appropriate):
# dd if=filename.img of=/dev/fd0 bs=1440k
Hope this helps and is the actual question you wanted an answer to.
don't forget the power of 'man <commandname>'
Tom