Problem:
When uploading a file with a name that contains spaces, It appears the spaces are not replaced with filler, so the download only has the first word in the file name and no extension.  It would be nice for the upload routine to replace spaces with "_" or "%20" or whatever.

Enhancements by importance:
1. You should not have to pick the "All" category, it should be there by default.  No file should be ommitted from the All category. 
2. Already on wish list, but to be able to point to files already on server.
3. Allow Title to default to file name (without extension)
4. I think this is already on the wish list, but to be able to sort by Category
5. Two sort levels:  By Category, then by Date;  Or by Category, then by name; etc.

Great Tool.  Already skinned a new layout to better suit my needs (Document Repository)!

-Dan-

Problem: http://support.dotnetnuke.com/Default.aspx?p=22&i=3093

Enhancements:

1.Steve has replied to this in another post somewhere and if I can find it I'll post a link to it but I'll paraphrase what I remember of his post. Basically ALL is just a placeholder category and could be anything you wanted it to be so it doesn't make sense to have it automatically checked.
3. http://support.dotnetnuke.com/Default.aspx?p=22&i=3094
4. Yup it is. http://support.dotnetnuke.com/Default.aspx?p=22&i=2582
5. http://support.dotnetnuke.com/Default.aspx?p=22&i=3095