Do i need patch 1.4 and 1.5 to play battlefield 2 online

http://www.battlefield.ea.com/battlefield/bf2/ lists the 1.41 patch but 1.50 is the latest patch. if its an all in 1 patch then yes use it. the 1.41 patch was issued in 2006 and the 1.5 patch introduces vista support. as well as other maps. so its more likley you will need the 1.5 patch.