You're right about the other two though. Amor Gitano was #1 for 13 weeks
After much searching I found the answer. This is so confusing
Amor Gitano was #1 (13wks) but on the Downloads chart (Same with Beautiful Liar). http://www.ukmix.org/forums/viewtopic.php?t=47001
And here they are referring to the singles chart (where Beyonce doesn't have a #1).