Labor immigration spokesman Tony Burke told the 2007 conference that the removal of thousands of islands from the migration zone was "crazy", and Labor in office would reverse it.
"(The Howard government) have excised a further 3,000-4,000 islands. We would return them to the migration zone," Mr Burke told the conference.
But that line in Mr Burke's address has been removed from a copy of his speech posted on the Labor Party's website.
A record of edits to the web page reveals the reference was removed after February 12 this year.
A refugee group is now questioning the Rudd government's commitment to ending the two-tier migration system, in which asylum seekers who reach the mainland are treated differently to those who land on islands in Australia's northern waters.
20 Feb. 2008
Surely There Are International Laws About This?
at 9:12:00 pm