Spice224: rename your files back to how they should be. Eg. .001 and so forth.
Or when you are downloading and ready to unzip, then first get this program:
7-Zip
And then use that to unzip... it will unpack all files correctly and you should end up with 2 files for each iso.
Hope this work, but not sure about the server... could be that maybe there hasn't been a download in decent time? Or maybe over loaded.