The others aren't in the feed unless you ask for them. To ask for them, you need to modify the query URL-- which you can do using the $query instance you have in your code. Call $query->setThumbsize('32,48,64'); etc before your retrieve the feed if you want to have the MediaThumbnail elements returned for multiple sizes.
The valid list is:
32, 48, 64, 72, 104, 144, 150, 160
If you include more than one, make it comma-delineated.
On Sun, Jun 6, 2010 at 8:32 AM, Danny Guerrier <[hidden email]> wrote: