肯請前輩指點關於my I-485

two weeks ago, I had an appointment at local office(by INFOPASS).
the officer said:
" your application for adjustment od status is currently being processed, your will be notified by mail of any change"

also the officer said if you do not receive your card after 2 weeks, you can walk in without an appointment.

My questions are:
1):I still do not reeceive any mail from immigration after 2 weeks.
do i have to go the local immigration office again??? or wait...

2):I checked the status on line, the status of my case never updated since 2006. it is normal????

Thanks for help.