Thanx for reply, Xiaobaitu. But I got five email under old case

Here is the information under my old case number (5 emails). This is also why I am confusing. What do you think?

On October 5, 2006, your I140 IMMIGRANT PETITION FOR ALIEN WORKER was
received here for processing. We will mail you a decision as soon as
processing is complete. You can use our processing dates to estimate
when this case will be done. Follow the the link below for current
processing dates.