[R] open files from ftp site

[Benoit Wastine]

Hello,
I'm running R 2.10.1 on Windows XP.
I'd like to read some files from a ftp site, but I don't how to do it. 
I've tried the functions url, download.file but each time I have a 
message "cannot open URL 'ftp://ftp.cea.fr'" .. and I don't kwow why ..
Thanks for the help
Benoit

-- 
Benoit Wastine
Laboratoire des Sciences du Climat et de l’Environnement (LSCE/IPSL)
CEA-CNRS-UVSQ
CE Saclay
Orme des merisiers
Bât 703 - Pte 13A
91191 Gif sur Yvette Cedex
France

Tel : 33 (0)1 69 08 21 97
Fax : 33 (0)1 69 08 77 16