First off it is vB and not vBB, next you are probably running 3.0.7.
Next the best way to do an upgrade is a straight upgrade to 3.5.4, no need to impex anything and you won't lose any data this way. But it's always a good idea to backup the database and perform a test upgrade on a backup copy of the database first to make sure there are no issues, if there are issues you may want to look into correcting them or using the impex method.
|