I need help changing the column width on the input table.

Is this the form in question? http://www.jotform.us/form/70854006479158 

Which column width do you want to increase? You can post a screenshot to this thread to indicate it: https://www.jotform.com/help/438-How-to-Post-Screenshots-to-Our-Support-Forum 

We will be glad to provide you the proper CSS code to accomplish what you need.