Corot will be the first mission capable of detecting rocky planets. This mission is not 100% certain yet, and is not totally guaranteed, plus ESA do have mishaps or sometimes get their budget cut. However the recent trend from European exploration with great results from Mars Express, Cluster, Rosetta, Xmm-Newton and Venus Express would suggest ESA is on a roll of success lately.
This Corot exoplanet mission will use its telescope to monitor closely the changes in a star’s brightness that comes from a planet crossing in front of it. In each field of view there will be one main target star for the asteroseismology as well as up to nine other targets. Simultaneously, it will be recording the brightness of 12,000 stars brighter than apparent magnitude 15.5 for the exo-planet study. The COROT project will contribute to the search for habitable, Earth-like planets around other stars.

The mission was first started by the French back in 1996, and later the European members of ESA joined the mission, the Russians will help launch it by Soyuz-Fregat at Baikonur

The corot handbook
http://corotsol.obspm.fr/web-instrum/payload.param/

Corot overview
http://www.esa.int/esaSC/120372_index_3_m.html

the Video
http://corot.oamp.fr/renduhr.avi

Beginning of the COROT satellite validation/integration phase, on 6 January 2006
http://smsc.cnes.fr/COROT/GP_actualite.htm

The Corot mission wasn't intended to be as ground breaking or massive as NASA's TPF, but was much more like the Kepler project, Corot just like the Kepler mission will use "transit" method to detect these planets.
Exact launch date is yet to be determined, but everything seems 'go' for October of this year 2006.