Sorry bud, but obvioulsy you like to listen to fantasy tales. To date no MiGs have been delivered to Venezuela. Chavez is already on the cards this week as stating that"he was thinking of selling Venezuela’s US built F 16 fighters to Iran and purchasing new MIGs from Russia". What you are relying on are the dodgy stories that have been doing the rounds. Take a look at the dodgy websites that promote such stories? Those same websites even promote your claims of "U.S. intelligence source also claims that MiGs have been spotted". It makes a great story, you certainly like your fantasy tales, but doesn't quite add up now does it? Explain how Mil can't hide the supply of helos to Venezuela yet MiG MAPO can hide the supply of MiG-29s? You do know that the Russian export company is accountable to the Russian government?
Also you are informing me that the MiGs are based at a joint mil/civilian airport. An airliner hub and not one person has imaged the MiGs or reported on them?
Latin American support
Despite receiving cursory support from the Organisation of American States in a resolution supporting Argentina's sovereignty and deploring EEC sanctions (with Chile, Colombia, Trinidad & Tobago and the USA attending but abstaining), Argentina received military assistance only from Peru (Peruvian president Belaunde announced that his country was "ready to support Argentina with all the resources it needed.") and Venezuela. This came in the form of aircraft supplies like long range air fuel tanks and spare parts. Argentina received Mirage 5P fighter planes from the Peruvian Air Force whilst the Argentine Navy received Aermacchi MB-326 and Embraer Bandeirantes from the Brazilian Air Force.
This is part of a wikepedia article, But not everything that venezuela did is listed. You see venezuela was the only country willing to give them or sell them exocets when there was a british ban on them to argentina.
I barely remenber but a few years back discovery channel did a piece on those missions to rearm the exocet on to etendard when the venezuelan exocet were fitted for pylons on Mirage2000"s.