request for 1.1 ...

custom fields
screenshots (via the attachment system would be enough!)
moderating queue for files uploaded by usergroups (some usergroups would have direct access then!)

... i think it's all we need... we already have a lot with your new system once it's debugged... thanks!

EDIT:

here are my edits to your hack:

1- downloads.php ... there is too much "$navbits = array();" ... the first one is enough!
2- the download.php file is useless... put your next version to a single file, by calling something like "downloads.php?dl=yes&fileid=XXX" ... this would do the trick of a single file to call everything.