Hi Scott, actually before I moved to the new computer, I was getting the same error on the old one, which made it even stranger. The old one had uploaded fine, but then I hadn't used it for a while - and when I did, it gave me the error. I was in a hurry at the time and just left it, and then had to change to the new computer.
Good idea to try the Passive Mode thing, ...... okay, that didn't work, but unchecking it brought up my firewall so I cleared access .... OH!!! DUMBO! my server pages are actually not in the root directory of the server, they're within a main folder called /httpdocs/ and I hadn't put that in front of the /store/ folder.
SORRY! My dumb! I blame overwork. LOL! THANKS! :-)