To write a post today and publish it tomorrow you have to click in the lower right corner of the Windows Live Writer on “Set publish date”.

The two arrows on the left and on the right side of the month name let you change the mont. A click on the month change the overview.

If you want to change only the time, click on the time and change it.

Click now on „publish“ in the upper left corner, you blog post will be online by the time you set.