DownloadsII 6.0.7 fixes some wrong applied image and file deletion permissions. Be sure you revert the updated templates if you modified them. Additionally, the minimum required vBulletin version was upped to vBulletin 4.0.4. Finally, the file integrity of DownloadsII can now be checked with vB's "Suspect File Versions" diagnostic tool.
Btw: Work on DownloadsII 6.1 was started, but this month I'm busy with my exams at university.
DownloadsII 6.0.7 Changelog

Now requires at least vBulletin 4.0.4
Jelle
- Fixed image and file deletion permissions
- Using new vB 4.0.4 cssfile construct in the templates
- Added MD5 sums to check file integrity