Try These:
http://www.free-embroidery-designs.com/freedesignsblog/
http://freeembroiderystuff.embroider...ckdesigns.aspx
http://www.secretsof.com/embroiderytips/freedesigns.htm
http://www.freewebs.com/cartoonembro...abcdesigns.htm
(this site has amazing design sets VERY inexpensive)
With PED, you aren't downloading directly from the site to the card, you are downloading to your computer, unzipping the file and putting it in a folder. Then when you use PED you will go into the folder and download the design onto PED from there.