I sent images off for smushing at the beginning of January.

Hi,

I sent images off for smushing at the beginning of January. Almost 4 weeks later 646 of 1,027 attachments have been smushed.

Worse, the site uses thumbnails on the home page, category pages and tag pages. Quite a few of these are missing - presumably "lost in space" between my server and Smush central.

What is the fix?

Thank you.