[R] R-1.7.1 package installation problem

[Wang, Rong]

Hi there,
   I am a bioinformatician working in DFCI. I am new to R. Yesterday I installed
the R-1.7.1 to my Linux (since I am not able to find R-1.8 on the webpage). But
I have some package installation problems ...

1. install.packages2() function isn't  available. If I type at R prompt:
>install.packages2("Biobase")
Error: couldn't find function "install.packages2"
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2. If I try this:
>install.packages("Biobase")
trying URL `http://cran.us.r-project.org/src/contrib/PACKAGES'
Content type `text/plain' length 127126 bytes
opened URL
.......... .......... .......... .......... ..........
.......... .......... .......... .......... ..........
.......... .......... ....
downloaded 124Kb

Warning message: 
No package "Biobase" on CRAN. in: download.packages(pkgs, destdir = tmpd,
available = available, 
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I did go to http://cran.us.r-project.org/src/contrib/PACKAGES to check the
packages available there, there are quite few ... Many packages, such as
Biobase, annotate and genefilter, are not included.

Could you please give me some clue? I do appreciate!

Sincerely,
Rong