Olympics: IOC president Jacques Rogge admits the Olympic movement has been damaged by the Marion Jones scandal.
The American sprinter has been formally stripped of five Olympic medals after her drug use was uncovered during the BALCO investigation but the IOC have postponed a decision on whether her relay team-mates will lose their medals.
Rogge said: "The issue of Ms Jones has been very damaging but it is a good thing for the fight against doping. The more athletes we catch, the more credibility we have.
"We will not redistribute any of the other rankings until after the review of the BALCO case as other names may well come out."
Jones has already handed back the three gold and two bronze medals she won at the Sydney Games in 2000 after admitting she had used performance-enhancing drugs.
The IOC's executive board meeting in Lausanne, Switzerland, yesterday confirmed her name will be removed from the record books for Sydney and also from Athens in 2004, where she competed in the long jump.
Rogge said a hearing would be set up to decide whether the rest of Jones' relay team would also lose their medals - something that looks certain as the US Olympic Committee has said it will not back their claims to keep them.
Jones won gold in the 4x400m relay and bronze in the 4x100m.
Rogge added that no decision would be taken on upgrading other athletes' medals until the full report had been received into the BALCO scandal.
Meanwhile, the IOC are looking to introduce an early-warning system to target illegal gambling on sports events before next summer's Beijing Olympics.
FIFA, UEFA, the International Cricket Council and the International Tennis Federation already have such systems in place and now the IOC is to follow suit.
Rogge said: "Bona fide betting companies can give us early warning by looking at the betting patterns and then we can act upon it.
"We will hold a seminar involving the international federations and national Olympic committees to form our strategy.
"There is a strong possibility of developing a relationship with a betting company and if necessary we will introduce that before the next Games."
There have been a number of claims in tennis of match-fixing, while earlier this month UEFA passed to police details of a number of European football matches where there were suspicious betting patterns.