Hi crawff, sorry I wasn't here to help earlier. You should indeed be able to download these files, save them to a 720kb floppy disk, then copy them onto your Amiga and extract them there. As long as you have the PC0 DOSDriver in Devs:DOSDrivers/ they should show up like any regular floppy disk.
You really should have a look into getting yourself a cheap PCMCIA card reader though! These things cost next to nothing, and will allow you to read 2GB SD cards and any size CF card, depending on the adapter you get. The drivers for them are freely available on Aminet, so if you have a local PC shop see if they have one, it makes transferring files so much easier and faster than using floppy disks.
If you'd like to download Backbone you'll probably be better off getting the smaller components rather than the large Full archive, which won't fit on a disk. Here are the links to the Backbone files you'll need:
http://aminet.net/package/dev/misc/Backbone_mainhttp://aminet.net/package/dev/misc/Backbone_Keyhttp://aminet.net/package/dev/misc/Backbone_projhttp://aminet.net/package/dev/misc/Backbone_UpdThese are the main files you need for the game creator package. There are also some example games made in Backbone on Aminet, but they're not required. Make sure you install the main archive first, then install the update.
Good luck with everything, I hope you can make a game out of all this, or at least just have more fun using your Amiga!
