It has been the longstanding practice of the Secret Service to transfer WAVES records on CD-ROM to the White House every 30 to 60 days.... [O]nce the Secret Service transferred the WAVES records, the Secret Service ensured those records were erased from its computer system.
In October 2004, at the request of the National Archives and Records Administration, the Secret Service began temporarily retaining its own copy of the WAVES records that it transferred to the White House. As such, the Secret Service has in its possession WAVES records dating back only to October 2004.
So the Secret Service only has WAVES dating back to October 2004. That's long after Abramoff would have have been welcome at the White House - The Washington Post kicked off the Abramoff scandal in February of that year. And that's why the search turned up nothing from the WAVES.
There are a couple of ongoing lawsuits against the Secret Service for records of Abramoff's and his associates' White House visits. But they're suing the wrong outfit. And it's obvious that they're not going to get any help from the White House or Secret Service in how they should go about obtaining these public records.
There's a question as to whether the White House would claim executive privilege over the records, but the effort to obtain Jeff Gannon/James Guckert's White House visit logs last year was ultimately successful, so a suit should work here too.
And when they finally do get around to suing the Executive Office of the President - the James Guckert/Jeff Gannon request indicated that the EOP was the White House office that keeps the WAVES records -, it should be worth their while. According to the NY Times, the WAVES records will tell you a lot more about Abramoff's comings and goings:
Two other administration officials, speaking on the condition of anonymity because of rules that generally bar them from speaking to reporters, said ... the more complete logs, known within the White House as Waves records, an acronym for the Workers Appointments and Visitors Entry System, would have identified the other visits by Mr. Abramoff.