3.2.2 would be the latest version of mYvBindex for vB2.
If I follow you here, this is really something caused by a forums setting that is incorrect. You should go to your Admin CP and click on "vBulletin Options". Under "General Settings", you should change the setting for the "URL" option to something such as
http://yoursite.com/forum/
Also, in the future you may want to ask support questions under the thread from which you downloaded the hack.