Hi guys,
I come back to this thread because I reinstalled a clean 4.2 and John's code is no longer work.
The 4.2 is default as renew the posting date when we change the plan. But it doesn't make the listing to top. Renewed listings has a new posting dates and will remain buried in 4.2
Please look at the screeenshot.
John code was working in 4.1 though. And now 4.3 is released.

Screen Shot 2014-02-21 at 9.33.14 AM.jpg

Is there any fix for this?