Compare Column Names From Two Tables In Same Database

I'm not a full-time DBA, so excuse my style of expressing my question.I have a database which has 2 tables in SQL 2005. Both these tables have similar column names, EXCEPT for new extra columns in FY2007_DATA. I can visually see the difference in columns in Database Diagrams. My goal is to :- I want to compare FY2007 tbl column names to FY2006 column names and display only those columns as results that do not match.Tbl 1 :- FY2006_DATA Tbl 2:-



FY2007_DATA

With online reading and help I have managed to get this script to do exactly opposite of what i want. Below is the query

/* This query compares the column names from two tables and displays the ones that have an exact match. It does not care for case-sensitiveness */

Select a.Table_Name, a.Column_Name, (b.Table_Name), (b.column_name)
From [2006-2011].INFORMATION_SCHEMA.Columns AS a
Join [2006-2011].INFORMATION_SCHEMA.Columns AS b on a.Column_Name = b.Column_Name
Where a.TABLE_NAME = 'FY2006_DATA'
And b.TABLE_NAME = 'FY2007_DATA'
AND a.Column_Name IN
(Select Column_Name = LEFT(c.column_name, 20) FROM
[H1B_2006-2011].INFORMATION_SCHEMA.Columns AS c WHERE c.TABLE_NAME = 'FY2007_DATA' )


When I change "AND a.Column_Name IN.." to "AND a.Column_Name NOT IN.." so that the results will (should) display the extra columns in FY2007, in fact I do not see any results, but query executes perfect.

How can I achieve my goal.?

Thank you