Need advice

My I-140 has been apporved on 05/18/05, however, info on internet still not been updated till today, is that normal or else? Also, my 485 application suppose to be received by CIS on 05/02/05 according to Fedex trace, however, till today, I still have not received the receipt notice yet? Don't know whether it's normal or not. Really started to get worried, pls advise or share info. Tks a lot.