It is the one the FindMadeleine-Campaign (last checked 24-June-2014) still looks for.
At the McCann's own page for investigation still (21st December 2013) had the following text:
“These two pictures show a man carrying a child away from the family's apartment. This sighting was seen by a witness at 21:15 on the evening of Thursday, May 3rd, 2007. The picture shows a man that was seen several times by different witnesses during the days leading up to Madeleine's abduction on May 3rd 2007. He was described as ugly with pock-marked skin and was said to be watching the family's apartment intently. If either of these men appear familiar to you in some way, please contact our investigation team as soon as possible.
This is an e-fit picture of a woman aged 30-35 years,approx. 5ft 2” tall, who was behaving suspiciously in the area of the Port Olimpic Marina in Barcelona in the early hours of May 7th 2007. She is a person of interest to the inquiry - as yet, unidentified.
Investigation: Do you have any information that could help our search for Madeleine? Did you see or hear something around the time of Madeleine's disappearance (3rd May 2007) that aroused your suspicions or seemed out of place? Did anyone tell you something which may be relevant to Madeleine's disappearance? Did somebody you know of suddenly leave the area soon after Madeleine's disappearance? Please, if you have any information which may help us with our search, come forward and tell us. All information will be handled with the strictest confidence. If you would prefer to stay anonymous, please use our anonymous form on our Contact Us page. Thank you for your help.
If you think you see Madeleine: 1) Report to the local police IMMEDIATELY !! 2) Is there CCTV at the location? Ask for it to be retained. 3) Did the individuals purchase anything (electronic payment) - thereby leaving a 'footprint'? 4) Did they leave in a vehicle? Try to take registration details. 5) If possible, discreetly take video or photo evidence to be examined by the police.