I need one of these to get my atari 2600 to work on a new tv

http://www.radioshack.com/product.as...t%5Fid=15-1268

But I would like to buy through Ebay instead and I found this

http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WD1V

Will it work? Please help me find one on Ebay, not quite sure what to search for and what I need.