When I click "Date" to sort by date, it's not working, check the screenshot above, just a year:
2005
2004
2006
2007
2007
2008
2008
2008
2005
2005
2006
2006
2005
2008
2005
...
It's not sorted by name, path, size, date - it looks it's not sorted at all.
To reproduce try to search in the folder with many subfolders, with many files with different size/extension/date.
I can also reproduce it in one quite small zip file,
also with default settings. If you still can't reproduce it, I can send you the link.
It looks it works good in small folders with just few files.