What filter should be used for date field in views I am building a view for showing upcoming events.

I have my own content type with CCK field with format  Date (Unix timestamp)  and widget as Pop-up calendar. All works fine, but i views i don't know how to filter it out. I have shown the filter criteria in a screeshot and i don't know what to give in the value field.
You need to activate the date_views module to see the filters appearing in the Views module interface.