Norton ToolBar is 4.5 , but my NIS versión is 17.6.0.32

Hello, my NIS´10 is ACTUALLY the 17.6.0.32 but the Norton ToolBar is 4.5 a5027i383C2046719B09DAre something wrong here? I using Firefox 3.6.3 in Vista Premium 32bits.

 

Regards