Hi,
See if this tutorial helps: http://www.dummies.com/how-to/content/snap-two-or-more-windows-81-apps-to-display-them.html
Hi are you saying to swipe down and then drag the new window to the upper middle to make it fullscreen? Ok that's a little better than trying to grab the middle I guess, but still not really an acceptable way to handle this, default to fullscreen seems like it should just be an option from day 1, yet like 2 years lf complaints and its still not avail :/ expected from a free licensed os but if they want to make $200 a copy this kind of oversight shouldn't exist.