Script Summary: Sort YouTube & Google video search results by date. The new default for searching YouTube and Google video, when this script is installed, is to sort the results by date and not by what YouTube & Google term, "relevance." Also there is a Menu option for columnated result presentation.
To have youtube and google video search results presented in a three column layout, select from from the GM icon, or from under the Tools menu for GreaseMonkey, "User Script Commands", within that, select "Youtube sort by date -- Toggle columnation."
The defualt number of columns when columnation is on is three(3). To alter this value goto about:config and set the number value of the preference named:
"extensions.greasemonkey.scriptvals.userscripts.org/YouTube Sort by date.no_of_cols"