For those using the latest ff 3.0 b3 release and interested in updating their lget installation, you can get the latest version from mozilla’s official addons site. Note that the linked version will only work on Firefox 3.0 b3.
The most requested feature is to get rid of the download window after submitting the URL (and I agree, it can be annoying). I will address that as soon as I get some free time.
UPDATE: lget 0.4.1 for Firefox 3.0 final is released. Click here for more info.