Parole Stamp in AP and I-94 gc-seeker2007-02-07 19:04:36

I used my AP and backed to Us on Dec 1, 2006. The official stamped on my AP and I-94. I just found the stamp shown on my AP and I-94 is “Paroled Pursuant to Sec 212 d(5) of the I&N act to Nov 30,2007”.
What’s the date means? Does it mean My I-94 will be expired at that time? Shall I do something to keep legal status?
I also noted that purpose in Parole Stamp is “D/A +/- 512 AOS. “
Can anyone give me an explanation?

Thanks!