If it's USPS then it'll be picked up on this side by Parcelforce. Have you tried putting the USPS tracking reference into PF's site?
From experience, it usually takes an extra 7 days to clear customs. You'll receive a letter from PF asking you to pay the VAT and duty plus admin charge. They won't attempt delivery until that's paid.
John
Wow ur right. Here's current information from parcelforce
Parcel tracking details
Date Time Location Tracking Event
09-07-2014 22:06 International Hub Awaiting Customs clearance
09-07-2014 22:05 International Hub Awaiting clearance - information needed from addressee
08-07-2014 10:42 International Hub Awaiting Customs clearance
08-07-2014 10:41 International Hub Awaiting Customs clearance
08-07-2014 10:34 International Hub Received in destination country
04-07-2014 04:56 Delivery Agent - CHICAGO Forwarded for export
04-07-2014 04:56 Delivery Agent - CHICAGO Forwarded for export
01-07-2014 11:40 Delivery Agent - UNITED STATES AMERICA Collected from customer
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From ur experience do I need to do anything yet