According to the latest Arianespace press-release: "As announced (...) by Arianespace CEO Jean-Yves Le Gall, the company foresees launching six Ariane 5s in 2007,..."
The payloads for 2007:
*Ariane-5ECA - Skynet-5A; Insat-4B
Ariane-5? - Star One C-1
Ariane-5? - Team Encounter F-1; SPACETECH-06 ST-06
*Ariane-5ECA - Astra-1L; Galaxy-17
Ariane-5? - Microscope; Amsat Phase-3E Express
Ariane-5GS - BSAT-3a
*Ariane-5ESV - ATV-1 'Jules Verne'
Ariane-5GS - Afristar-2 (Worldstar-3)
Ariane-5GS - Skynet-5B
Ariane-5? - AirTV-1
*Ariane-5GS - KEO
Ariane-5GS - Star One C-2
Ariane-5? - Sicral
Ariane-5? - TerreStar-1
Well, obviously some of this payloads may be delayed to 2008. Anyone can help in knowing which payloads are going to be launch this year, in what combinations and in what kind of Ariane. I think that the ones with * are correct (but that doesn't mean that are going to be launched this year).