Date in K2 Url

I use Financial Business template (Joomla 2.5) and latest version of sh404sef.I managed to make urls more human, but in some articles dates are added when creating article (like www.mysite.com/category/2012-02-24-14-11-35.html

Of course I can make a custom url with sh404sef, but is there a way to make default url without date in K2?
Have googled this forum and k2 forum and have not found solution.

Please check "alias" in your main menu items which is linked to k2.

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