Please make sure you're "under the July Bulletin"

Q7: Which fees apply to I-765 and I-131 applications associated with AOS applications filed on or after July 30th under the July Bulletin?
A7. The fee of $180 for Forms I-765 and the fee of $170 for Form I-131 will remain in effect for those aliens eligible to file an employment-based adjustment of status application pursuant to July Visa Bulletin No. 107. These fees will remain in effect for all such applications filed between July 17 – August 17, 2007.

Interpretation:
You still enjoy lower fees as long as your I-485 is received by USCIS between 7/1-8/17/07.

Example: If your I-485 was received on 6/25, and you file AP/EAD on 7/20, your petition will be rejected if you did not include the NEW fee.