ok, since you have the US version, the in-game browser is the dreamkey browser. you have to rename your PASSPORT files into DREAMKEY files.
you have 2 options. connect to the net with a dreamkey browser. and re-download the files. or go to my
site
use the PASSPORT upload field at the top of the page, load a file then hit SUBMIT. the next page should show the file info. at the top is a text field, rename the PASSPORT part to DREAMKEY, then hit RENAME. keep doing this for the rest of your files.
tell me if it works.