[R] unable to download

[#AMELIA ANWAR#]

Hi,
I am currently trying to install packages from BioConductor to R. However, I received a error stating: "unable to connect to 'www.bioconductor.org' on port 80"
May I know what is wrong and how may I correct it?? If possible give a step by step procedures on how can I do it...
Thanks alot,
Amelia
 
PS: Please reply ASAP as I am currently doing a Final Year Project on microarray analysis and already beyond scheduled.